(a) 1/4
(b) 1/10
(c) 7/15
(d) 8/15
Explanation:
A’s 1 day’s work = 1/15;
B’s 1 day’s work = 1/20
(A + B)’s 1 day’s work = (1/15 + 1/20) = 7/60
(A + B)’s 4 day’s work = (7/60 x 4) = 7/15
Therefore, Remaining work = (1 – 7/15) = 8
(a) 1/4
(b) 1/10
(c) 7/15
(d) 8/15
Explanation:
A’s 1 day’s work = 1/15;
B’s 1 day’s work = 1/20
(A + B)’s 1 day’s work = (1/15 + 1/20) = 7/60
(A + B)’s 4 day’s work = (7/60 x 4) = 7/15
Therefore, Remaining work = (1 – 7/15) = 8
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