Practice Question and Answer
8Q: Sum of present ages of P and Q is 41. Age of P 2 year hence is equal to age of R, 1 year ago. Age of P, 4 year hence is equal to age of Q 1 year ago and ratio of present age of P and S is 3 : 4. Find the difference of age of R and S. 2543 05b5cc6aae4d2b4197774cf4c
5b5cc6aae4d2b4197774cf4c- 12false
- 23true
- 34false
- 45false
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Answer : 2. "3"
Explanation :
Answer: B) 3 Explanation: According to the given data, P + Q = 41 ......(1) R - 1 = P + 2 R = P + 3 and P + 4 = Q - 1 => Q = P + 5 ....(2) From (1)&(2) P = 18 Q = 18 + 5 = 23 R = 18 + 3 = 21 => P/S = 3/4 => S = 4/3 x 18 = 24 Required Difference = S - R = 24 - 21 = 3.
Q: An intelligent boy is doing a jigsaw with 275 pieces. Each day that he fits pieces together there are fewer pieces left, and it is reasonable to assume that he fits more pieces each day because the number left to sort out diminishes progressively. Hence he is able to fit an extra piece as each day goes by. On the first day he fits 20 pieces. How many days does it take for him to complete the puzzle ? 2543 05b5cc71ee4d2b4197774f59a
5b5cc71ee4d2b4197774f59a- 111 daystrue
- 215 daysfalse
- 313 daysfalse
- 416 daysfalse
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Answer : 1. "11 days"
Explanation :
Answer: A) 11 days Explanation: Let 'n' number of days it take to complete. we know that sum of n number= n/2[2a+(n-1)d]where a=20,d=1;n/2[2x20+(n-1)1]=275n[n+39]=550n2 + 39n - 550 = 0 n2+ 50n - 11n - 550 = 0(n-11) (n-50) = 0n-11 = 0;n = 11(Days).
Q: किसी वस्तु को निश्चित मूल्य पर बेचने से एक दुकानदार को x% की हानि होती हैं | यदि वह इसे दोगुने मूल्य पर बेचे तो उसे 30% का लाभ प्राप्त होता हैं | x का मान ज्ञात कीजिये |
2542 15ebeb855d33dc17bd49a30ff
5ebeb855d33dc17bd49a30ff- 130%false
- 235%true
- 340%false
- 445%false
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Answer : 2. "35%"
Q: कथन :
नेल्सन मंडेला 27 साल की सजा के बाद राष्ट्रपति बने ।
पूर्वधारणाएं :
I. 27 साल की सजा के बाद कोई भी राष्ट्रपति बन जायेगा ।
II. राष्ट्रपति बनने की योग्यता सजा है ।
2541 05f6dbebf26f26f600c5a93b0
5f6dbebf26f26f600c5a93b0- 1afalse
- 2bfalse
- 3cfalse
- 4dtrue
- 5efalse
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Answer : 4. "d"
Q: निम्न में से कौन सा एक ओपन सोर्स (सभी को निःशुल्क) मोबाइल ओएस (OS) है?
2541 061c583dee343c02767855ac7
61c583dee343c02767855ac7- 1वाई-फाईfalse
- 2इंडक्शनfalse
- 3इन्फ्रारेडfalse
- 4उपरोक्त सभीtrue
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Answer : 4. "उपरोक्त सभी"
Explanation :
एक ओपन सोर्स (सभी के लिए नि:शुल्क) निम्न कनेक्टिविटी की आवश्यकता है।
- वाई-फाई
- इंडक्शन
- इन्फ्रारेड
Q: कृत्रिम वर्षा हेतु प्रयुक्त पदार्थ है –
2541 05ef1afdd7fed557ba2abd7d3
5ef1afdd7fed557ba2abd7d3- 1सिल्वर आयोडाइडtrue
- 2सिल्वर ब्रोमाइडfalse
- 3अमोनियम नाइट्रेटfalse
- 4उपरोक्त सभीfalse
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Answer : 1. "सिल्वर आयोडाइड "
Q: एक कूटभाषा में यदि ‘PARTY’ को '161182025' लिखा जाता है। तो उसी कूट भाषा में ‘CAMERA’ को कैसे लिखा जायेगा?
2541 05f5f1e4f80a26b7dabf91586
5f5f1e4f80a26b7dabf91586- 131451926false
- 224116126false
- 332116181false
- 431135181true
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Answer : 4. "31135181"
Q: Arrange the given words in alphabetical order and tick the one that comes in the middle ? 2541 05b5cc6fee4d2b4197774f120
5b5cc6fee4d2b4197774f120- 1Slaughtertrue
- 2Skirtfalse
- 3Straightfalse
- 4Shoutfalse
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Answer : 1. "Slaughter"
Explanation :
Answer: A) Slaughter Explanation: The arrangement in the alphabetical order is Shout, Skirt, Slaughter, Specify, Straight. The word in the middle is Slaughter.