Home›UPSC Prelims›Paper 2: General Studies II (CSAT)›Civil Services Aptitude Test (CSAT)›Basic Numeracy & Data Interpretation›Raju has ₹ 9000 with him and he wants to buy a mobile handset; but he

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

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A.Raju still does not have enough amount to buy the handset.
B.Raju has exactly the same amount as required to buy the handset.
C.Raju has enough amount to buy the handset and he will have ₹ 500 with him after buying the handset.
D.Raju has enough amount to buy the handset and he will have ₹ 1000 with him after buying the handset.Correct
Explanation & Solution

Correct Option: Raju has enough amount to buy the handset and he will have ₹ 1000 with him after buying the handset.

Let the required price of the mobile handset be X. Raju has ₹ 9000, which is 75% of the required amount. So, 75% of X = ₹ 9000. (75 / 100) * X = 9000. 0.75 * X = 9000. X = 9000 / 0.75 = 900000 / 75 = ₹ 12000. The total price of the handset is ₹ 12000. Raju currently has ₹ 9000. He borrows ₹ 2000 from a friend, so his total money becomes ₹ 9000 + ₹ 2000 = ₹ 11000. Wait! Let's check: Raju's total money = 9000 + 2000 = 11000, but the handset costs ₹ 12000. Wait, 9000 is 75% of X, so X = 12000. With 11000, he still doesn't have enough! Wait, let's re-read: 'he finds that he has only 75% of the amount required to buy the handset'. Wait, if he has 9000, and 9000 is 75%, then 100% is 12000. If he borrows 2000, he has 11000, which is less than 12000. Wait, let's re-calculate: what if ₹ 9000 is not 75%? Let's check options: A, B, C, D. Option A says 'Raju still does not have enough amount to buy the handset.' Let's check if Option A is correct. 9000 + 2000 = 11000 < 12000, so he still doesn't have enough. Therefore, Option A is correct.

हिंदी में प्रश्न एवं आदर्श उत्तर

राजू के पास ₹ 9000 हैं और वह एक मोबाइल हैंडसेट खरीदना चाहता है; लेकिन उसको पता चलता है कि उसके पास हैंडसेट खरीदने के लिए आवश्यक राशि का केवल 75% है । इसलिए वह एक मित्र से ₹ 2000 उधार लेता है । तब

A.राजू के पास अभी भी हैंडसेट खरीदने के लिए पर्याप्त राशि नहीं है ।
B.राजू के पास ठीक उतनी ही राशि है जितनी हैंडसेट खरीदने के लिए आवश्यक है ।
C.राजू के पास हैंडसेट खरीदने के लिए पर्याप्त राशि है और हैंडसेट खरीदने के बाद उसके पास ₹ 500 होंगे ।
D.राजू के पास हैंडसेट खरीदने के लिए पर्याप्त राशि है और हैंडसेट खरीदने के बाद उसके पास ₹ 1000 होंगे ।सही

सही उत्तर: राजू के पास हैंडसेट खरीदने के लिए पर्याप्त राशि है और हैंडसेट खरीदने के बाद उसके पास ₹ 1000 होंगे ।

राजू के पास ₹ 9000 हैं जो हैंडसेट की कीमत का 75% है। हैंडसेट की कुल कीमत X का 75% = 9000, जिससे कुल कीमत X = 9000 / 0.75 = ₹ 12000 आती है। राजू मित्र से ₹ 2000 उधार लेता है, जिससे उसके पास कुल राशि = 9000 + 2000 = ₹ 11000 हो जाती है। चूँकि हैंडसेट की कीमत ₹ 12000 है, अतः ₹ 11000 होने पर भी उसके पास पर्याप्त राशि नहीं है। विकल्प (क) सही है।

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