Work-Time

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A conveyor belt delivers baggage at the rate of 3 tons in 5 minutes, and a second conveyor belt delivers baggage at the rate of 1 ton in 2 minutes. How much time will it take to get 33 tons of baggage delivered, using both the conveyor belts?
25 minutes and 30 seconds
no
30 minutes
yes
35 minutes
no
40 minutes and 45 seconds
no
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If 18 men and 10 boys can do as much work in a day as 10 men and 22 boys. How much should a man be paid per day if a boy gets Rs.5 a day?
Rs 5/2
no
Rs 7/2
no
Rs 5 1/2
no
Rs 7 1/2
yes
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A and B together can do a piece of work in 6/5 days, B and C together can do it in 12/7 days. A and C together can do it in 4/3 days. In how many days will A, B and C finish the work, working together?
13/12
no
12/13
yes
7/12
no
None of these
no
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A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
12 days
no
15 days
yes
16 days
no
18 days
no
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50 men or 80 women can finish a job in 50 days. A contractor deploys 40 men and 48 women for this work, but after every duration of 10 days, 5 men and 8 women are removed till the work is completed. The work is completed in......
45 days
no
50 days
yes
54 days
no
62 days
no
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A, B and C together can complete a work in 12 days. A and B together can complete the same work in 15 days. B and C together can complete the same work in 20 days. In how many days can B alone complete the same work?
20 Days
no
24 Days
no
25 Days
no
30 Days
yes
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If a quantity of food serves 80 soldiers for 17 days, then how many soldiers will it serve for 16 days?
85
yes
68
no
64
no
96
no
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P, Q and R can polish a diamond in 2, 3 and 6 days respectively. If P works on the first day on a diamond, Q works on the second day on the same diamond and R on the third day on the same diamond followed by P on a new diamond and the cycle repeats, then how many diamonds can be polished in 11 days in such manner.
11
no
3
no
4
no
23/6
yes
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7 men and 3 women can do twice as much work as done by 3 men and 7 women in the same time. What is the ratio of work done by a man and a woman in unit time?
1:11
no
11:1
yes
1:1
no
None of these
no
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A girl can finish a job in 10 days. A boy is twice as efficient as the girl. If a woman is thrice as efficient as the girl and a man is twice as efficient as the woman, then how many days will it take to finish 3 such jobs when a boy, a woman and a man do the job together?
1.2 days
no
0.833 days
no
2.7 days
no
3.6 days
yes
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