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Quiz 10
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Q.1
If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
60
45
40
30
Q.2
A man and a boy received Rs. 800 as wages for 5 days for the work they did together. The man's efficiency in the work was thrice times that of the boy. What are the daily wages of the boy?
Rs. 76
Rs. 56
Rs. 44
Rs. 40
Q.3
A cistern can be filled by two pipes in 20 and 30 minutes respectively. Both pipes being opened, when the first pipe must be turned off so that the cistern may be filled in 10 minutes more.
After 10 minutes
After 12 minutes
After 20 minutes
After 8 minutes
Q.4
If 10 men or 20 boys can make 260 mats in 20 days, then how many mats will be made by 8 men and 4 boys in 20 days?
260
240
280
520
Q.5
If A and B together can complete a work in 18 days, A and C together in 12 days, and B and C together in 9 days, then B alone can do the work in:
18 days
24 days
30 days
40 days
Q.6
A complete $$\frac{7}{{10}}$$ of a work in 15 days, then he completed the remaining work with the help of B in 4 days. In how many day A and B can complete entire work together?
$$10\frac{1}{2}\,\,{\text{days}}$$
$$12\frac{2}{3}\,\,{\text{days}}$$
$$13\frac{1}{3}\,\,{\text{days}}$$
$$8\frac{1}{4}\,\,{\text{days}}$$
Q.7
A and B together can complete a work in 3 days. They start together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in
5 days
6 days
9 days
10 days
Q.8
A can complete a piece of work in 18 days, B in 20 days and C in 30 days, B and C together start the work and forced to leave after 2 days. The time taken by A alone to complete the remaining work is:
10 days
12 days
15 days
16 days
Q.9
Working 5 hours a day, A can Complete a work in 8 days and working 6 hours a day, B can complete the same work in 10 days. Working 8 hours a day, they can jointly complete the work in:
3 days
4 days
4.5 days
5.4 days
Q.10
Ganga and Saraswati, working separately can mow field in 8 and 12 hours respectively. If they work in stretches of one hour alternately. Ganga is beginning at 9 a.m., when will the moving be completed?
6:20 PM
6:30 PM
6:36 PM
6:42 PM
0 h : 0 m : 1 s
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