A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
A.20 days
B.22 1/2 days
C.25 days
D.30 days
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AnshikaSharma9988:
what's the 4th step???
.....complete work 60 days earlier......
A and B together can complete the work 60 days earlier than B alone can complete the work
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