GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: The average temperature for Monday, Tuesday, Wednesday and Thursday was 48 degrees and for Tuesday, Wednesday, Thursday and Friday was 46 degrees. If the temperature on Monday was 42 degrees. Find the temperature on Friday ? 2107 05b5cc6e7e4d2b4197774ed83
5b5cc6e7e4d2b4197774ed83- 134true
- 236false
- 338false
- 440false
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उत्तर : 1. "34"
व्याख्या :
Answer: A) 34 Explanation: M + Tu + W + Th = 4 x 48 = 192Tu + W + Th + F = 4 x 46 = 184M = 42Tu + W + Th = 192 - 42 = 150F = 184 – 150 = 34
प्र: The sale price of an article including the sales tax is Rs. 616. The rate of sales tax is 10%. If the shopkeeper has made a profit of 12%, then the cost price of the article is : 1985 05b5cc6e7e4d2b4197774ed88
5b5cc6e7e4d2b4197774ed88- 1Rs. 560false
- 2Rs. 530false
- 3Rs. 500true
- 4Rs. 514false
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उत्तर : 3. "Rs. 500"
व्याख्या :
Answer: C) Rs. 500 Explanation: 110% of S.P. = Rs. 616 S.P. = (616 x 100)/110 = Rs. 560 C.P = (110 x 560)/112 = Rs. 500
प्र: The present average age of a family of five members is 26 years. If the present age of the youngest member in the family is ten years, then what was the average age of the family at the time of the birth of the youngest member ? (Assume no death occurred in the family since the birth of the youngest) 4077 05b5cc6e7e4d2b4197774ed8d
5b5cc6e7e4d2b4197774ed8d- 119 yearsfalse
- 216 yearsfalse
- 318 yearsfalse
- 420 yearstrue
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उत्तर : 4. "20 years"
व्याख्या :
Answer: D) 20 years Explanation: Present total age of the members = 26(5) = 130 years. Present age of the youngest member = 10 years Present total age of the remaining four members = 130 -10 = 120 years Their average age at the time of the birth of the youngest member = 120-4×104 = 30 - 10 = 20 years.
प्र: If Rs. 782 be divided into three parts, proportional to 1/2:2/3:3/4, then the first part is: 1817 05b5cc6e7e4d2b4197774ed7e
5b5cc6e7e4d2b4197774ed7e- 1Rs. 408false
- 2Rs. 204true
- 3Rs. 412false
- 4Rs. 220false
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उत्तर : 2. "Rs. 204"
व्याख्या :
Answer: B) Rs. 204 Explanation: Given ratio = 1/2:2/3:3/4 = 6:8:9 1st part = 782 x 6/23 = Rs. 204.
प्र: A train sets off at 3 p.m. at the speed of 70 kmph. Another train starts at 4:30 p.m. in the same direction at the rate of 85 kmph. At what time the trains will meet ? 2137 05b5cc6e7e4d2b4197774ed79
5b5cc6e7e4d2b4197774ed79- 110:10 pmfalse
- 29:50 pmfalse
- 311:30 pmtrue
- 410:30 pmfalse
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उत्तर : 3. "11:30 pm"
व्याख्या :
Answer: C) 11:30 pm Explanation: Distance = 70 x 1 ½ = 105 km Relative Speed = 85 – 70 = 15 Time = 105/15 = 7 hrs 4:30 + 7 hrs = 11.30 p.m.
प्र: Twenty times a positive integer is less than its square by 96. What is the integer ? 1507 05b5cc6e7e4d2b4197774ed74
5b5cc6e7e4d2b4197774ed74- 142false
- 236false
- 348false
- 424true
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उत्तर : 4. "24"
व्याख्या :
Answer: D) 24 Explanation: Let the integer be x. Then, x2 - 20x = 96 (x + 4)(x - 24) = 0 x = 24
प्र: A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B ? 1286 05b5cc6e7e4d2b4197774ed6f
5b5cc6e7e4d2b4197774ed6f- 110 yrstrue
- 211 yrsfalse
- 312 yrsfalse
- 413 yrsfalse
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उत्तर : 1. "10 yrs"
व्याख्या :
Answer: A) 10 yrs Explanation: Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years. (2x + 2) + 2x + x = 27 5x = 25 => x = 5 Hence, B's age = 2x = 10 years.
प्र: A is sister of B who is mother of C who is mother of D. E is the grand mother of D. Then how C is related to E ? 1294 05b5cc6e5e4d2b4197774ed60
5b5cc6e5e4d2b4197774ed60- 1Sisterfalse
- 2Daughterfalse
- 3Motherfalse
- 4Daughter-in-lawtrue
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उत्तर : 4. "Daughter-in-law"
व्याख्या :
Answer: D) Daughter-in-law Explanation: GM GMA ---- B ---- E | | C | | D (Grand son or daughter)