Quantitative Aptitude Practice Question and Answer
8Q: A can do a work in 9 days, B can do a work in 7 days, C can do a work in 5 days. A works on the first day, B works on the second day and C on the third day respectively that is they work on alternate days. When will they finish the work ? 1651 05b5cc73de4d2b4197774f94d
5b5cc73de4d2b4197774f94d- 1[7 + (215/345)] daysfalse
- 2[6 + (11/215)] daysfalse
- 3[6 + (261/315)] daystrue
- 4[5 + (112/351)] daysfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "[6 + (261/315)] days"
Explanation :
Answer: C) [6 + (261/315)] days Explanation: After day 1, A finishes 1/9 of the work. After day 2, B finishes 1/7 more of the total work. (1/9) + (1/7) is finished. After day 3, C finishes 1/5 more of total work. Total finished is 143/315. So, after day 6, total work finished is 286/315. ┬а Now remaining work =┬а 29 /315 ┬а On day 7, A will work again┬а ┬а Work will be completed on day 7 when A is working. He must finish 29/315 of total remaining work. ┬а Since he takes 9 days to finish the total task, he will need 261/315 of the day.┬а ┬а Total days required is 6 + (261/315) days.
Q: 3 : 12 :: 5 : ? 1649 05b5cc6b9e4d2b4197774d702
5b5cc6b9e4d2b4197774d702- 117false
- 230true
- 326false
- 432false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "30"
Explanation :
Answer: B) 30 Explanation: 332┬а+┬а3┬а=┬а12552┬а+┬а5┬а=┬а30
Q: The ratio between the length and breadth of a rectangular field is 5 : 4 if the breadth is 20m less than the length, the perimeter of the field is : 1646 05b5cc70be4d2b4197774f2e6
5b5cc70be4d2b4197774f2e6- 1260mfalse
- 2280mfalse
- 3360mfalse
- 4none of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Answer: Explanation:
Q: The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number ┬а? 1645 05b5cc6dbe4d2b4197774e94b
5b5cc6dbe4d2b4197774e94b- 1270true
- 21270false
- 3350false
- 4720false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "270"
Explanation :
Answer: A) 270 Explanation: Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.
Q: In the given number series which follows the definite rules then find out the value of (M, N, O, and P) in second number series. 7┬а 18┬а 42┬а 94┬а 204 4┬а ┬аM┬а ┬аN┬а ┬а O┬а ┬а ┬аP What value will come in place of P? 1645 05b5cc6b4e4d2b4197774d4e8
5b5cc6b4e4d2b4197774d4e8- 1179false
- 2184false
- 3164false
- 4156true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "156"
Explanation :
Answer: D) 156 Explanation: Here the given series┬а7┬а 18┬а 42┬а 94┬а 204┬аfollows a pattern that,┬а 7 7┬а├Ч2+4┬а=┬а18 18┬а├Ч2+6 =┬а42 42┬а├Ч2+10 =┬а94 94┬а├Ч2+16 =┬а204 Similarly, 4 4┬а├Ч2+4┬а=┬а12 12┬а├Ч2+6 =┬а30 30┬а├Ч2+10 =┬а70 70┬а├Ч2+16 =┬а156 Hence, the value of P = 156.
Q: An automobile financier claims to be lending money at S.I., but he includes the interest every six months for calculating the principal. If he is charging an interest of 8%, the effective rate of interest becomes ? 1644 05b5cc6dce4d2b4197774e96a
5b5cc6dce4d2b4197774e96a- 110.25 %false
- 28.16 %true
- 39.63 %false
- 40.16 %false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "8.16 %"
Explanation :
Answer: B) 8.16 % Explanation: Let the sum be Rs. 100. Then,S.I. for first 6 months = (100 x 8 x 1) / (100 x 2) = Rs. 4S.I. for last 6 months = (104 x 8 x 1) / (100 x 2) = Rs. 4.16So, amount at the end of 1 year = (100 + 4 + 4.16) = Rs. 108.16Effective rate = (108.16 - 100) = 8.16%.
Q: If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is ┬а? 1644 05b5cc6ebe4d2b4197774ee64
5b5cc6ebe4d2b4197774ee64- 11false
- 21/2true
- 30false
- 43/5false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "1/2"
Explanation :
Answer: B) 1/2 Explanation: The number of exhaustive outcomes is 36.Let E be the event of getting an even number on one die and an odd number on the other. Let the event of getting either both even or both odd then = 18/36 = 1/2P(E) = 1 - 1/2 = 1/2.
Q: 4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it ? 1643 05b5cc6dfe4d2b4197774eb02
5b5cc6dfe4d2b4197774eb02- 140 daystrue
- 236 daysfalse
- 332 daysfalse
- 434 daysfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "40 days"
Explanation :
Answer: A) 40 days Explanation: Let 1 man's 1 day work = x and 1 woman's 1 day work = y.Then, 4x + 6y = 1/8 and 3x + 7y = 1/10Solving these two equations, we get:x = 11/400 and y = 1/40010 woman's 1 day work = (1/400 x 10) = 1/40. Hence, 10 women will complete the work in 40 days.