Quantitative Aptitude
easyQ. No. 14027-simplify-155-5-45
Simplify: 155 / 5 + 45
Last Updated:
A86
B96
C66
D76
Correct Answer: 76Your Answer: D
Explanation
The question-specific working recorded with the item is: Applying BODMAS to 155 / 5 + 45 gives 76..
Important Notes
- Simplify the expression in “Simplify: 155 / 5 + 45” to obtain
- Solve or Simplify step by step: Applying BODMAS to 155 / 5 + 45 gives
- While simplifying “Simplify: 155 / 5 + 45”, preserve every sign and bracket.
- Reverse-check this Simplify result 76 against the original expression.
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Simplification FAQs
Common questions and clear answers for this topic.
Which method applies to this question?
Convert mixed values where needed, use a common denominator, and apply division as multiplication by the reciprocal.
What is the verified answer?
76, option D.
What is a common error?
Changing operation order, losing a sign, or simplifying a factor where cancellation is invalid.
How can the result be checked?
Substitute it back, estimate its magnitude, or recompute using an equivalent form.
What is Simplification in Quantitative Aptitude and what rules are followed?
Simplification involves solving mathematical expressions using BODMAS rule. BODMAS stands for: Brackets, Orders (powers and roots), Division, Multiplication, Addition, Subtraction. The rule determines the order in which operations are performed. Simplification is a major topic in SSC CGL Tier 1, IBPS Clerk, SBI Clerk, Railway Group D, and all competitive exams.
What are the important number properties needed for Simplification?
Important properties for Simplification: Squares up to 30, Cubes up to 15, Square roots of perfect squares up to 400, Multiplication tables up to 20. Also remember: a squared - b squared = (a+b)(a-b), (a+b) squared = a squared + 2ab + b squared, (a-b) squared = a squared - 2ab + b squared, a cubed + b cubed = (a+b)(a squared - ab + b squared). Memorizing these speeds up simplification in exams.