GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: Shamma lends Rs.40,000 to two of her friends. She gives Rs.24,000 to the first at 8% p.a. simple interest. Shamma wants to make a profit of 10% on the whole. The simple interest rate at which she should lend the remaining sum of money to the second friend is: 2035 05b5cc6b7e4d2b4197774d624
5b5cc6b7e4d2b4197774d624- 113%true
- 28.5%false
- 39.5%false
- 411.25%false
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उत्तर : 1. "13%"
व्याख्या :
Answer: A) 13% Explanation: The ratio of money she lended is 24000 : 16000 = 3 : 2 Let the rate of interest be R% 8% R% 10 3 : 2 R = 13%.
प्र: Square is to Triangle and Cube is to 2829 05b5cc6b7e4d2b4197774d606
5b5cc6b7e4d2b4197774d606- 1Pyramidtrue
- 2Rectanglefalse
- 3Icefalse
- 4Rhombusfalse
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उत्तर : 1. "Pyramid"
व्याख्या :
Answer: A) Pyramid Explanation: Square is 2-dimensional 4 sided figure Whereas Cube is 3-dimensional figure which looks like Square. Similarly, Triangle is 2-dimensional 3 sided figure Whereas Pyramid is 3-dimensional figure which looks like Triangle.
प्र: The sum of three consecutive odd numbers is 93. What is the middle number? 2151 05b5cc6b7e4d2b4197774d5e7
5b5cc6b7e4d2b4197774d5e7- 131true
- 233false
- 329false
- 427false
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उत्तर : 1. "31"
व्याख्या :
Answer: A) 31 Explanation: Let the three consecutive odd numbers be x, x+2, x+4 Then, x + x + 2 + x + 4 = 93 => 3x + 6 = 93 => 3x = 87 => x = 29 => 29, 31, 33 are three consecutive odd numbers. Therefore, the middle number is 31.
प्र: A train travelling with a speed of 60 km/hr catches another train travelling in the same direction and then leaves it 120m behind in 18 seconds. The speed of the second train is 1631 05b5cc6b7e4d2b4197774d5dd
5b5cc6b7e4d2b4197774d5dd- 142 kmphfalse
- 272 kmphfalse
- 336 kmphtrue
- 444 kmphfalse
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उत्तर : 3. "36 kmph"
व्याख्या :
Answer: C) 36 kmph Explanation: Given speed of the first train = 60 km/hr = 60 x 5/18 = 50/3 m/s Let the speed of the second train = x m/s Then, the difference in the speed is given by 503 - x = 12018 => x = 10 m/s => 10 x 18/5 = 36 km/hr
प्र: In a college, number of boys is 75% of number of girls. Difference between boys and girls is 35. On a particular day 20% boys were absent, then find the number of boys those who present? 1532 05b5cc6b7e4d2b4197774d5e2
5b5cc6b7e4d2b4197774d5e2- 172false
- 284true
- 393false
- 481false
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उत्तर : 2. "84"
व्याख्या :
Answer: B) 84 Explanation: Ratio of girls and boys = 100% : 75% = 4:3 Difference is 1 unit = 35 So, 3 units = 35 x 3 = 105 If 20% absent, that’s mean 80% present. So, present boys = 80% of 105 = 80×105100 = 84
प्र: Hari Ram’s present age is three times his son’s present age and two fifth of his father’s present age. The average of the present age of all of them is 46 years. What is the difference between Hari Ram’s son’s present age and Hari Ram’s father’s present age? 5475 05b5cc6b7e4d2b4197774d5d8
5b5cc6b7e4d2b4197774d5d8- 144 yrsfalse
- 256 yrsfalse
- 367 yrsfalse
- 478 yrstrue
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उत्तर : 4. "78 yrs"
व्याख्या :
Answer: D) 78 yrs Explanation: Let Hari Ram's present age = x Then, his son's age = x/3 Father's age = 5x/2 x + x3 + 52x3 = 46=> x = 36 yrs Now the required difference = 52x36 - 363 = 78 yrs
प्र: 111 13 112 24 113 35 117 ? 2109 05b5cc6b7e4d2b4197774d5ce
5b5cc6b7e4d2b4197774d5ce- 146false
- 257false
- 368false
- 479true
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उत्तर : 4. "79"
व्याख्या :
Answer: D) 79
Explanation: The given puzzle follows a pattern that,
Number -
प्र: 5/8 as a Decimal Equals To 1522 05b5cc6b6e4d2b4197774d5c3
5b5cc6b6e4d2b4197774d5c3- 10.625true
- 20.541false
- 30.258false
- 40.147false
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उत्तर : 1. "0.625"
व्याख्या :
Answer: A) 0.625 Explanation: 5/8 is Nothing but to divide 5 into 8 parts. As 5 is smaller than 8, the quotient starts with a decimal point to make 5 as 50 to be divisible by 8. (0.) Now 50 goes for 6 times in 8 leaving a remainder 2. (0.6) Again 2 is smaller than 8, As it already has decimal point in the quotient, now 2 becomes 20. Now 20 goes for 2 times in 8 leaving a remainder 4. (0.62) Again 4 is smaller than 8, As it already has decimal point in the quotient, now 4 becomes 40. Now 40 goes for 5 times in 8 leaving a remainder 0. (0.625) Therefore, the decimal value of 58 is 0.625. Now find a decimal value of 1117 and Discuss your at Discuss.