Quantitative Aptitude प्रश्न और उत्तर का अभ्यास करें
8प्र: 3/4 divided by 2 is 1833 05b5cc666e4d2b4197774bed0
5b5cc666e4d2b4197774bed0- 13/2false
- 22/3false
- 38/3false
- 43/8true
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उत्तर : 4. "3/8"
व्याख्या :
Answer: D) 3/8 Explanation: 3/4 divided by 2 = 3/4/2 = 3/4x2 = 3/8. Hence, 3/4 divided by 2 is equal to 3/8.
प्र: In the following question a number series is given which has only one wrong number. You have to find out the wrong number? 7.5 47.5 87.5 157.5 247.5 357.5 487.5 1832 05b5cc7c9e4d2b41977750e9f
5b5cc7c9e4d2b41977750e9f- 147.5true
- 287.5false
- 3247.5false
- 4357.5false
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उत्तर : 1. "47.5"
व्याख्या :
Answer: A) 47.5 Explanation:
प्र: One third of a Number is 96. What will 67% of that Number be? 1832 05b5cc7c8e4d2b41977750e04
5b5cc7c8e4d2b41977750e04- 1192.96true
- 2181.44false
- 3169.92false
- 4204.48false
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उत्तर : 1. "192.96"
व्याख्या :
Answer: A) 192.96 Explanation: Let the Number be x. Given that one third of a Number is 96. i.e x = 3 x 96 = 288. 67% of x = x×67100=288×67100=192.96
प्र: If the price of a commodity is decreased by 20% and its consumption is increased by 10%, what will be the increase or decrease in the expenditure on the commodity? 1831 05b5cc6a2e4d2b4197774cb70
5b5cc6a2e4d2b4197774cb70- 1increase 12%false
- 2decrease 12%true
- 3increase 16%false
- 4decrease 16%false
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उत्तर : 2. "decrease 12%"
व्याख्या :
Answer: B) decrease 12% Explanation: Given the price of a commodity is decreased by p = 20% And its consumption is increased by q = 10% Now, required increase or decrease in the expenditure on the commodity can be p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%. Hence, decrease in the expenditure = 12%
प्र: The ratio between the number of sheep and the number of horses at the Stewar farm is 4 to 15. If each of horse is fed 110 ounces of horse food per day and the farm needs a total 13200 ounces of horse food per day. what is number sheep in the form ? 1830 05b5cc754e4d2b4197774fb7c
5b5cc754e4d2b4197774fb7c- 132true
- 236false
- 344false
- 452false
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उत्तर : 1. "32"
व्याख्या :
Answer: A) 32 Explanation: Given ratio of number of sheep and horses = 4 : 15Let number of sheep and horses are 4k and 15k Number of horses = 13200/110 = 120 Now 15K = 120 and k = 8 Number of sheep = 4k = (4 x 8) = 32
प्र: Maheshwari wants to buy 7 floors in an 68 storied building whose numbering stars from 1 upto 68. But she has to follow certain rules which are as follows : 1) None of the floor should be a prime number 2) None of the digit of the floor should be a prime number 3) Maheshwari cannot buy the 1st floor as it is being assigned to the architect. So how many options are left with Maheshwari to buy the floors ? 1826 05b5cc709e4d2b4197774f2a8
5b5cc709e4d2b4197774f2a8- 111false
- 217true
- 313false
- 419false
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उत्तर : 2. "17"
व्याख्या :
Answer: B) 17 Explanation: Since floor starts form the 1 therefore 2 will be the 1st floor.Form 1 to 10 only 4,6,8,9,10 are not prime.Form 11 to 20 only 14 ,16,18 are not prime also non of their digits are prime.From 21 to 30 each number has a prime number so it must no be consider.In between 40 to 49 we have to consider only 40,44,46,48,49.50 to 59 follow either of the condition so we have too neglect it.In between 60 to 68 60,64,66,68.total option = 17.
प्र: What least number must be substracted from 627349 so that the remaining number is divisible by 15 ? 1826 05b5cc754e4d2b4197774fb9a
5b5cc754e4d2b4197774fb9a- 11false
- 22false
- 33false
- 44true
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उत्तर : 4. "4"
व्याख्या :
Answer: D) 4 Explanation: On dividing 627349 by 15, we get remainder = 4.Therefore, the obtained remainder is the least number to be subtracted from the given number so that the the mnumber is divisible by 15.Here 4 is the least number to be subtracted from 627349 so that it is divisible by 15.
प्र: A farmer divides his herd of k cows among his 4 sons, so that one son gets one half of the herd, the second gets one-fourth, the third gets one-fifth and the fourth gets 9 cows. Then k is equal to ? 1825 05b5cc73de4d2b4197774f92a
5b5cc73de4d2b4197774f92a- 1160false
- 2120false
- 3140false
- 4180true
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उत्तर : 4. "180"
व्याख्या :
Answer: D) 180 Explanation: Given total number of cows = kNow, 1st son share = k/22nd son share = k/43rd son share = k/54th son share = 9 (k) + (k/4) + (k/5) + 9 = k=> k - (19k/20) = 9=> (20k-19k)/20 = 9=> k = 180.

