Answer: Option B
Explanation:
C's 1 day's work =  1     1  +  1   =  1    7  =  1  . 
3  6  8  3  24  24 
A's wages : B's wages : C's wages =  1  :  1  :  1  = 4 : 3 : 1. 
6  8  24 
C's share (for 3 days) = Rs.   3 x  1  x 3200   = Rs. 400. 
24 
6. 
If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:

Answer: Option A
Explanation:
Let 1 man's 1 day's work = x and 1 boy's 1 day's work = y.
Then, 6x + 8y =  1  and 26x + 48y =  1  . 
10  2 
Solving these two equations, we get : x =  1  and y =  1  . 
100  200 
(15 men + 20 boy)'s 1 day's work =   15  +  20   =  1  . 
100  200  4 
15 men and 20 boys can do the work in 4 days.

7. 
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?

A.  8 hours 
B.  10 hours 
C.  12 hours 
D.  24 hours 
Answer: Option C
Explanation:

8. 
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:

Answer: Option C
Explanation:

9. 
A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

Answer: Option C
Explanation:

10. 
A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?

A.  11:30 A.M. 
B.  12 noon 
C.  12:30 P.M. 
D.  1:00 P.M. 
Answer: Option D
Explanation:
(P + Q + R)'s 1 hour's work =   1  +  1  +  1   =  37  . 
8  10  12  120 
Work done by P, Q and R in 2 hours =   37  x 2   =  37  . 
120  60 
Remaining work =   1   37   =  23  . 
60  60 
(Q + R)'s 1 hour's work =   1  +  1   =  11  . 
10  12  60 
Now,  11  work is done by Q and R in 1 hour. 
60 
So,  23  work will be done by Q and R in   60  x  23   =  23  hours 2 hours. 
60  11  60  11 
So, the work will be finished approximately 2 hours after 11 A.M., i.e., around 1 P.M.
11. 
A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?


12. 
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?

Answer: Option B
Explanation:

13. 
A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?

Answer: Option D
Explanation:

14. 
P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?

Answer: Option A
Explanation:

15. 
10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

A.  3 
B.  5 
C.  7 
D.  Cannot be determined 
E.  None of these 
Answer: Option C
Explanation:



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