GATE Practice Question and Answer
8Q: 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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Answer : 3. "6.66 %"
Explanation :
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 %.
Q: Which planet has the lowest density? 1674 05b5cc69de4d2b4197774c933
5b5cc69de4d2b4197774c933- 1Earthfalse
- 2Jupiterfalse
- 3Saturntrue
- 4Neptunefalse
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Answer : 3. "Saturn"
Explanation :
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.
Q: The more you take, the more you leave behind. What is that? 1673 05b5cc63de4d2b4197774bae3
5b5cc63de4d2b4197774bae3- 1Picturesfalse
- 2Holefalse
- 3Clothesfalse
- 4Footstepstrue
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Answer : 4. "Footsteps"
Explanation :
Answer: D) Footsteps Explanation: Yes, footsteps are what we take more, the more we leave behind.
Q: 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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Answer : 3. "606"
Explanation :
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.
Q: Absolute value of 9? 1671 05b5cc675e4d2b4197774c143
5b5cc675e4d2b4197774c143- 10false
- 29true
- 38false
- 4-9false
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Answer : 2. "9"
Explanation :
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.
Q: 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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Answer : 1. "Only a is sufficient"
Explanation :
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
Q: Rolling friction is caused by ____ from the following? 1670 05b5cc6bde4d2b4197774d8e3
5b5cc6bde4d2b4197774d8e3- 1Non-elastic effectstrue
- 2Gravityfalse
- 3Power dissipationfalse
- 4Buoyancyfalse
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Answer : 1. "Non-elastic effects"
Explanation :
Answer: A) Non-elastic effects Explanation: Rolling friction or rolling drag is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects, that is, not all the energy needed for deformation of the wheel, roadbed, etc... is recovered when the pressure is removed. Another cause of rolling resistance lies in the slippage between the wheel and the surface, which dissipates energy.
Q: Number Challenge 1670 05b5cc6d3e4d2b4197774e4f0
5b5cc6d3e4d2b4197774e4f0- 19false
- 211true
- 313false
- 415false
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Answer : 2. "11"
Explanation :
Answer: B) 11 Explanation: Half the Product of Number in the upper & lower box gives the number in the middle box. i.e. 18 x 4/2 = 36 15 x 6/2 = 45 In the same way 8 x N/2 = 44 => N = 11.

