GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: An amount doubles itself in 15 years. what is the rate of interest ? 1674 05b5cc711e4d2b4197774f3cd
5b5cc711e4d2b4197774f3cd- 17.85 %false
- 29.41%false
- 36.66 %true
- 44.21 %false
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उत्तर : 3. "6.66 %"
व्याख्या :
Answer: C) 6.66 % Explanation: Let the principle be Rs. PAs the amount double itself the interest is Rs. P tooSo P = P x r x 15/100=> r = 100/15 = 20/3 % = 6.66 %.
प्र: Which planet has the lowest density? 1674 05b5cc69de4d2b4197774c933
5b5cc69de4d2b4197774c933- 1Earthfalse
- 2Jupiterfalse
- 3Saturntrue
- 4Neptunefalse
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उत्तर : 3. "Saturn"
व्याख्या :
Answer: C) Saturn Explanation: Saturn, the solar system's second largest planet that takes the prize for least dense. It's less dense than water, which has led many people to postulate that it would float. However, even if it somehow found its way to a body of water large and deep enough to contain it, Saturn would break apart and its rocky core would sink.
प्र: The more you take, the more you leave behind. What is that? 1673 05b5cc63de4d2b4197774bae3
5b5cc63de4d2b4197774bae3- 1Picturesfalse
- 2Holefalse
- 3Clothesfalse
- 4Footstepstrue
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उत्तर : 4. "Footsteps"
व्याख्या :
Answer: D) Footsteps Explanation: Yes, footsteps are what we take more, the more we leave behind.
प्र: What will come in place of the question mark(?) in the following question ? 56% of 870 + 82% of 180 = 32% of 90 + ? 1671 05b5cc6c5e4d2b4197774dd37
5b5cc6c5e4d2b4197774dd37- 1777false
- 2666false
- 3606true
- 4789false
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उत्तर : 3. "606"
व्याख्या :
Answer: C) 606 Explanation: 56% of 870 = 56x870/100 = 487.20 82% of 180 = 82x180/100 = 147.60 32% of 90 = 32x90/100 487.20 + 147.6 - 28.8 = ? ? = 634.8 - 28.8 ? = 606.
प्र: Absolute value of 9? 1671 05b5cc675e4d2b4197774c143
5b5cc675e4d2b4197774c143- 10false
- 29true
- 38false
- 4-9false
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उत्तर : 2. "9"
व्याख्या :
Answer: B) 9 Explanation: Absolute value of a number : It means that the distance of a number from 0 on a number line. Here absolute value of 9 is that on a number line 9 is 9 units away from 0. Hence its absolute value is 9. Similarly, absolute value of -9 means -9 is also 9 units away from the 0 on number line. Hence, absolute value of -9 is also 9. Hence, the absolute value of 9 is 9.
प्र: What is the first term of an arithmetic progression of positive integers ? (I) Sum of the squares of the first and the second term is 116. (II)The fifth term is divisible by 7. 1671 05b5cc705e4d2b4197774f21b
5b5cc705e4d2b4197774f21b- 1Only a is sufficienttrue
- 2Only b is sufficientfalse
- 3Both a & b are necessaryfalse
- 4Nonefalse
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उत्तर : 1. "Only a is sufficient"
व्याख्या :
Answer: A) Only a is sufficient Explanation: The sum of square of two no is 116 i.e no lie 1-11, because 11x11 =121 which is greater than 116 again after cheaking all possible pair of no only 4 and 10 satisfy this condsn , again the progression is of positive integer so 10 cant not be 1st termso the 1st term is 4,but from the 2nd we cant able to find the 1st term so only 1st statement is sufficient to answer the question
प्र: In one year, the Amount collected for social welfare, of a village increased by 10% and in the next year, it decreased by 10%. If at the end of 2nd year, the amount was 7920, what was it in the beginning ? 1671 05b5cc6d8e4d2b4197774e773
5b5cc6d8e4d2b4197774e773- 18800false
- 28650false
- 38000true
- 48980false
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उत्तर : 3. "8000"
व्याख्या :
Answer: C) 8000 Explanation: Let the amount collected be 'A'Then, from the given conditions,A x 110/100 x 90/100 = 7920 A x 0.99 = 7920 A = 7920/0.99=> 8000
प्र: A shopkeeper sells two articles at Rs.1000 each, making a profit of 30% on the first article and a loss of 20% on the second article. Find the net profit or loss that he makes ? 1671 05b5cc6e2e4d2b4197774ec20
5b5cc6e2e4d2b4197774ec20- 10.85 %false
- 20.95 %true
- 31.0 %false
- 41.3 %false
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उत्तर : 2. "0.95 %"
व्याख्या :
Answer: B) 0.95 % Explanation: SP of first article = 1000Profit = 30%CP = (SP)x[100/(100+P)] = 10000/13 SP of second article = 1000Loss = 20%CP = (SP)x[100/(100-L)] = 5000/4 = 1250 Total SP = 2000 Total CP = 10000/13 + 1250 = 2019.23 CP is more than SP, he makes a loss. Loss = CP-SP = 2019.23 - 2000 = 19.23Loss Percent = [(19.23)/(2019.23)]x100 = 0.95 %.