Amit can complete a work in 20 days by working 6 hours per day. Sanjay can complete the same work in 25 days by working 8 hours per day. If both of them work together 5 hours per day, in how many days the work will be completed?
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Answer:
].
5 5
11
@
[B].
5 6
11
[C].
6 5
11
[D].
6 6
11
Answer: Option A
Explanation:
P can complete the work in (12 x 8) hrs. = 96 hrs.
Q can complete the work in (8 x 10) hrs. = 80 hrs.
P's1 hour's work = 1 and Q's 1 hour's work = 1 .
96 80
(P + Q)'s 1 hour's work = 1 + 1 = 11 .
96 80 480
So, both P and Q will finish the work in 480 hrs.
11
Number of days of 8 hours each = 480 x 1 = 60 days = 5 5 days.
11 8 11 11
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