Quantitative Aptitude Practice Question and Answer
8Q: 16 of 225 is = 1577 05b5cc6b4e4d2b4197774d4d4
5b5cc6b4e4d2b4197774d4d4- 17.11true
- 27.21false
- 36.87false
- 47.58false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "7.11"
Explanation :
Answer: A) 7.11 Explanation: 16 of 225 is = 16 = p × 225100p = 1600225 = 7.1111
Q: [(24)2+(27)2]÷? = 9.0625 1576 05b5cc7c8e4d2b41977750e31
5b5cc7c8e4d2b41977750e31- 1121false
- 2144true
- 3169false
- 481false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "144"
Explanation :
Answer: B) 144 Explanation:
Q: K, L and M can do a piece of work in 20, 30 and 60 days respectively. In how many days can K do the total work if he is assisted by L and M on every third day ? 1576 05b5cc754e4d2b4197774fb86
5b5cc754e4d2b4197774fb86- 115 daystrue
- 213 daysfalse
- 312 daysfalse
- 410 daysfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "15 days"
Explanation :
Answer: A) 15 days Explanation: In one day work done by K = 1/20 Work done by K in 2 days = 1/10 Work done by K,L,M on 3rd day =1/20 + 1/30 + 1/60 = 1/10 Therefore, workdone in 3 days is = 1/10 + 1/10 = 1/5 1/5th of the work will be completed at the end of 3 days. The remaining work = 1 - 1/5 = 4/5 1/5 of work is completed in 3 days Total work wiil be done in 3 x 5 = 15 days.
Q: A can complete 9/10 part of a work in 31 days. After that, with the help of B he can complete the remaining work in 4 days. In how many days will A and B together can complete that work ? 1572 05b5cc6c0e4d2b4197774db14
5b5cc6c0e4d2b4197774db14- 136false
- 240true
- 342false
- 438false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "40"
Explanation :
Answer: B) 40 Explanation: Remaining work = 1 - 9/10 = 1/10 => A & B together completes 1/10 of work in 4 days => 1 work can completed in ------ ? days Let it be x days => 4110=x1 => x = 40 days. Hence, A & B together can complete the work in 40 days.
Q: Lasya invested certain amount for two rates of simple interests at 5% p.a. and 4% p.a. What is the ratio of Lasya's investments if the interests from those investments are equal ? 1570 05b5cc6e2e4d2b4197774ec1b
5b5cc6e2e4d2b4197774ec1b- 14 : 5true
- 25 : 4false
- 37 : 6false
- 46 : 7false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "4 : 5"
Explanation :
Answer: A) 4 : 5 Explanation: Let x be the investment of Lasya in 5% and y be in 4% x(5)(n)/100 = y(4)(n)/100 => x/y = 4/5 x : y = 4 : 5
Q: Mohan spends 23% of an amount of money on an insurance policy, 33% on food, 19% on children’s education and 16% on recreation. He deposits the remaining amount of Rs. 504 in bank. How much amount does he spend on food and insurance policy together? 1568 05b5cc678e4d2b4197774c160
5b5cc678e4d2b4197774c160- 1Rs. 2326false
- 2Rs. 5876false
- 3Rs. 1741false
- 4Rs. 3136true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Rs. 3136"
Explanation :
Answer: D) Rs. 3136 Explanation: Let total amount = Rs. P Total expenditure = (23 + 33 + 19 + 16)% of P = 91%ofP Remaining money = (100 - 91)% of P = 9% of P But given in the question that, 9% of P = 504 9p/100 = 504 => P = 50400/9 => P = Rs. 5600 Required money spent on Food & Insurance = 23 + 33 % = 56% of 5600 = 56 x 5600/100 = 56 x 56 = Rs. 3136
Q: Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is : 1568 05b5cc6eee4d2b4197774ef09
5b5cc6eee4d2b4197774ef09- 183false
- 289false
- 385true
- 479false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "85"
Explanation :
Answer: C) 85 Explanation: Since the numbers are co-prime, they contain only 1 as the common factor.Also, the given two products have the middle number in common.So, middle number = H.C.F of 551 and 1073 = 29;First number = 551/29 = 19Third number = 1073/29 = 37.Required sum = 19 + 29 + 37 = 85.
Q: A man reduces his travelling time by a fraction of 2/5, as a result the distance covered by the man is increased by 20%, find the percentage increase in the speed of the man ? 1568 05b5cc6c5e4d2b4197774dddc
5b5cc6c5e4d2b4197774dddc- 177%false
- 288%false
- 3100%true
- 499%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "100%"
Explanation :
Answer: C) 100% Explanation: