Multiple Choice QuestionsA and B undertake a piece of work for ₹ 250/-. A alone can do that work in 5 days and B alone can do that work in 15 days. With the help of C, they finish the work in 3 days. If everyone gets paid in proportion to work done by them, the amount C will get is:
₹ 50/-
₹ 100/-
₹ 150/-
₹ 150/-
The ratio of working of A and B are in the ratio of 2 : 3. The number of days taken by them to finish the work in the ratio:
2 : 3
4 : 9
3 : 2
3 : 2
A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work in
20 days
21 days
22 days
24 days
A and B can do a piece of work in 72 days. B and C can do it in 120 days and A and C can do it in 90 days. A alone can do it in
120 days
130 days
150 days
100 days
A.
120 days
Shortcut Method:
Let ABC can do it in x days.
Now,
Thus, ABC can do it in 60 days
B and C can do it in 120 days (given)
∴ A alone can do it in
A can do 
of a work in 5 days and B can do 
th of this work in 10 days. Both A and B, together can do the work in
10 days
A and B together finish a job in 24 days, While A, B and C together can finish the same job in 8 days. C alone will finish the work in
12 days
14 days
16 days
24 days
18 men or 36 boys working 6 hours a day can plough a field in 24 days. In how many days will 24 men and 24 boys working 9 hours a day plough the same field?
9
10
6
8
Shashi can do a piece of work in 20 days. Tanya is 25% more efficient than Shashi. The number of days taken by Tanya to do the same piece of work is:
15
16
18
25
A can finish a work in 7 days. B can finish the same work in 9 days. The days required to finish the work by both of them together
A and B together can complete a work in 24 days. B alone does 1/3 rd part of this work in 12 days. How many days will A alone take to complete the remaining work?
24
36
48
72
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