Time and Work Questions and Answers

The verified answer to “Solve this Time and Work question: A contractor estimates that 24 workers can complete a community centre in 40 days. The deadline is shortened to 24 days. How many additional workers of equal efficiency must be hired from the beginning?” is 16 workers, option B. The question-specific working supplied with the item states: 0 − 24 = 16.otal work = 24×40 = 960 worker-days. New duration = 24 days, so required workers = 960/24 = 40. Additional workers = 40-24 = 16. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 16 workers. The alternatives 14 workers, 18 workers and 12 workers fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 16 workers, so option B is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: Twenty workers can complete a drainage project in 36 days. After working for 12 days, 5 workers leave the site. The question-specific working supplied with the item states: After 5 workers leave, 15 remain; required time = 480 ÷ 15 = 32 days.otal work = 20×36 = 720 worker-days. New duration = 24 days, so required workers = 720/24 = 30. Additional workers = 30-20 = 10. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 32 days. The alternatives 34 days, 36 days and 30 days fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 32 days, so option A is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: A team of 18 workers completes a road survey in 30 days by working 8 hours daily. If the same team works 10 hours daily at the same hourly efficiency, in how many days will it finish the survey?” is 24 days, option D. The question-specific working supplied with the item states: s. New duration = 20 days, so required workers = 540/20 = 27. Additional workers = 27-18 = 9. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 24 days. The alternatives 25 days, 26 days and 22 days fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 24 days, so option D is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: Ravi and Mohan work for the same number of days, and their efficiency ratio is 3:5. If they receive ₹9,600 together, what amount should Mohan receive?” is ₹6,000, option C. The question-specific working supplied with the item states: 4 = 360 worker-days. New duration = 18 days, so required workers = 360/18 = 20. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is ₹6,000. The alternatives ₹3,600, ₹4,800 and ₹6,400 fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. In a number series, record differences, ratios or alternating operations. This full replay leads only to ₹6,000, so option C is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: Anil can prepare a report in 12 days and Sunil can prepare the same report in 18 days. If they work together from the beginning, how many days will they take to complete it?” is 7.2 days, option B. The question-specific working supplied with the item states: New duration = 15 days, so required workers = 240/15 = 16. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 7.2 days. The alternatives 6 days, 8 days and 9 days fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 7.2 days, so option B is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: 15 identical machines working 6 hours daily for 20 days produce 10 units. The question-specific working supplied with the item states: roduction is proportional to machines×hours×days. Required machines = 15×6×20×25/(10×10×25) = 18. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 18 machines. The alternatives 17 machines, 19 machines and 20 machines fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 18 machines, so option A is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: 12 identical machines working 7 hours daily for 18 days produce 10 units. How many machines are required to produce 20 units in 21 days while working 9 hours daily?” is 16 machines, option D. The question-specific working supplied with the item states: roduction is proportional to machines×hours×days. Required machines = 12×7×18×20/(10×9×21) = 16. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 16 machines. The alternatives 14 machines, 15 machines and 17 machines fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 16 machines, so option D is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: 10 identical machines working 9 hours daily for 15 days produce 10 units. How many machines are required to produce 20 units in 20 days while working 9 hours daily?” is 15 machines, option C. The question-specific working supplied with the item states: roduction is proportional to machines×hours×days. Required machines = 10×9×15×20/(10×9×20) = 15. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 15 machines. The alternatives 13 machines, 14 machines and 17 machines fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 15 machines, so option C is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: 8 identical machines working 6 hours daily for 12 days produce 10 units. How many machines are required to produce 15 units in 18 days while working 8 hours daily?” is 6 machines, option B. The question-specific working supplied with the item states: roduction is proportional to machines×hours×days. Required machines = 8×6×12×15/(10×8×18) = 6. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 6 machines. The alternatives 4 machines, 7 machines and 8 machines fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 6 machines, so option B is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.

The verified answer to “Solve this Time and Work question: 6 identical machines working 8 hours daily for 10 days produce 10 units. The question-specific working supplied with the item states: roduction is proportional to machines×hours×days. Required machines = 6×8×10×20/(10×12×20) = 4. This working identifies the relevant work-rate equation and connects the given information to the required result. To solve reliably, represent every term, person, seat, letter or operation in the order stated; then apply one rule consistently instead of guessing from the final pair alone. After applying the verified rule, the required value or position is 4 machines. The alternatives 3 machines, 5 machines and 6 machines fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. For independent confirmation, begin with the first clue or term, rebuild each intermediate step, and compare the derived result with all four choices. In a letter series, translate letters into positions A=1 through Z=26 and preserve wraparound. This full replay leads only to 4 machines, so option A is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.