UPSC Prelims 2019 CSAT Paper II · Q17 of 79 Basic Numeracy easy

Raju has ₹ 9000 with him and he wants to buy a mobile handset; but he finds that he has only 75% of the amount required to buy the handset. Therefore, he borrows ₹ 2000 from a friend. Then

  1. (a) Raju still does not have enough amount to buy the handset. ✓ UPSC's answer
  2. (b) Raju has exactly the same amount as required to buy the handset.
  3. (c) Raju has enough amount to buy the handset and he will have ₹ 500 with him after buying the handset.
  4. (d) Raju has enough amount to buy the handset and he will have ₹ 1000 with him after buying the handset.

Why the answer is (a)

• Raju has ₹9000, which represents 75% of the total cost of the mobile handset.

• To find the full cost, divide ₹9000 by 0.75, which equals ₹12,000.

• Raju borrows ₹2,000, bringing his total available funds to ₹9,000 + ₹2,000 = ₹11,000.

• The required amount is ₹12,000, but Raju only has ₹11,000.

• Since ₹11,000 is less than ₹12,000, Raju still does not have enough amount to buy the handset.

Why the other options are wrong

(b) Raju has exactly the same amount as required to buy the handset.
Raju has ₹11,000, which is ₹1,000 short of the required ₹12,000, so he does not have exactly the same amount.
(c) Raju has enough amount to buy the handset and he will have ₹ 500 with him after buying…
Raju cannot buy the handset because he is short by ₹1,000, so he cannot have ₹500 left over.
(d) Raju has enough amount to buy the handset and he will have ₹ 1000 with him after buying…
Raju cannot buy the handset because he is short by ₹1,000, so he cannot have ₹1,000 left over.

Asked in the CSAT Paper II of the UPSC Civil Services Preliminary Examination 2019, held on 2 June 2019. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.

Reading the answer is not the same as getting it right under a clock. Practise this question with UPSC's negative marking, and anything you miss goes into an error notebook until you get it right twice.

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