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- 46. A can do piece of work in 15 days and B in 20 days they finished the work with the assistance of c in 5 days and got Rs.45 as their wages find the share for each in wages?
A.11,12,13
B.15,11,13
C.15,11.25,18.75
D.11,15.25,18.75
Answer & Explanation
Answer: Option C 
A’s 1 day work =1/3
B’s 1 day work =1/4
C’s 1 day work =1-1/4-1/3 =5/12
A’s share =45 *1/3 = 15
B’s share= 45*1/4 = 11.25
C’s share =45*5/12 = 18.75
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- 47. A and B together can do a piece of work in 6 days and A alone can do it in 9 days. In how many days can B alone can do it?
A.12 days
B.15 days
C.18 days
D.21 days
Answer & Explanation
Answer: Option C
A and B can do work 1/6 in 1 day
A alone can do 1/9 work in 1 day
B alone can do (1/6 -1/9) =1/18 work in 1 day
=> complete work can be done in 18 days by B
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- 48. A person P takes 4 hrs time to complete a job and Q takes 6 hrs to complete the same job if they work together how much time will they require to complete the job?
A.1.2 hrs
B.1.8 hrs
C.2.4 hrs
D.3.0 hrs
Answer & Explanation
Answer: Option C
P’s 1 hr work =1/4
Q’s 1 hr work =1/6
(P+Q)’s 1 hr work= 1/4 +1/6 =5/12=> time = 12/5 =2.4 hrs
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- 49. P can do a piece of work in 18 days and Q can do in 22 days, with the help of C, they finish the work in 6 days. How long will it take R to finish the work?
A.17days
B.18days
C.16 ½ days
D.17 ½ days
Answer & Explanation
Answer: Option C
(P+Q) 1 day work = 1/18 + 1/22 = 7/66
(P+Q+R) 1 day work = 1/6
R 1 day work =1/6 – 7/66 = 2/33
R can do piece of work in 16 ½ days
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- 50. Charan can do a piece o work in 24 days, which Hari alone can finish in 19 days. Both together work for 7 days and then Hari leaves off. How many days will Caran take to finish remaining work?
A.22days
B.22 ½ days
C.21 ½ days
D.20days
Answer & Explanation
Answer: Option A
Caran and Hari 7 days work = 7(1/24+1/19) = 43/456
Remaining work = (1- 43/456) =413/456
Charan 1 days work = 1/24
413/456 work will be done by Caran in 24* 413/456 = 22 days (approx)
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