Discussion of Question with ID = 036 under Data-Sufficiency

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Question

You have to decide whether the data provided in the statements are sufficient to answer the question. Read the statements and give your answer.

A's salary was increased by 20%, by what % his savings is increased ?

  1. He used to save 10% of his income before increment.
  2. He increased his expenses just by 10% after increment.
A

if statement I alone is sufficient but statement II alone is not sufficient.

B

if statement II alone is sufficient but statement I alone is not sufficient.

C

if both statements I and II together are sufficient but neither of statements alone is sufficient.

D

if each statement alone is sufficient.

Soln.
Ans: c

If we suppose the income to be Rs 100, then from statement I, A spends Rs 90 and saves Rs 10. From statement II, his expenses now become 99. Therefore, savings as becomes 120 − 99 = Rs 21. Hence, A's saving is increased by Rs 11 i.e., 110%.


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