Number System Questions and Answers – Page 3

The verified answer is 124, option C. For “Which number is divisible by 4?”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: Last 2 digits divisible by 4.. The distractors 128, 122, 126 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value.

The verified answer is 625, option D. Translate the statement into integer, fraction or place-value relations and simplify systematically. For “Find the value of 1000 − 375”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: 1000−375 = 625.. The distractors 725, 825, 525 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. An independent reverse-check again gives 625.

For “Which number is multiple of 7?”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation.

For “Find the square root of 144”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: √144 = 12..

The verified answer is 126, option C. For “Which number is divisible by 2 and 3?”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: 126 divisible by 6.. Write one justified transformation per line, cancel common factors only when multiplication permits it, and preserve the left-to-right rule for operations of equal priority. The distractors 130, 124, 128 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. Estimate the expected sign and approximate magnitude before accepting an option. The exact answer should be consistent with those bounds and with every restriction in the stem. This explanation connects the result with a reproducible method instead of isolated answer recall and strengthens calculation discipline, pattern recognition and option elimination for SSC, Railway, Banking and other competitive aptitude examinations.

Translate the statement into integer, fraction or place-value relations and simplify systematically. For “Find the value of 50% of 200”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The distractors 125, 50, 75 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. An independent reverse-check again gives 100.

The verified answer is 127, option C. For “Which number is odd?”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: Odd numbers not divisible by 2.. The distractors 124, 126, 122 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. An independent reverse-check again gives 127.

The verified answer is 128, option D. For “Which number is even?”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: Even numbers divisible by 2.. The distractors 121, 123, 125 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. An independent reverse-check again gives 128.

The verified answer is 125, option D. For “Find the cube of 5”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The question-specific working recorded with the item is: 5³ = 125.. The distractors 225, 25, 75 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. An independent reverse-check again gives 125.

For “Which number is divisible by 5?”, retain the exact signs, brackets, powers and numerical conditions before beginning the calculation. The distractors 127, 121, 122 may arise from changing the order of operations, mishandling a negative sign, using an incorrect reciprocal, ignoring a divisibility condition, or rounding an exact value. An independent reverse-check again gives 125.