Discussion

Explanation:

Work done by Amit in one day = 112
Work done by Sagar in one day = 115

In one day, Amit and Sagar can do = 112 + 115 = 320th

Hence, in 4 days they will complete 4×320 = 35th of the work.

Hence, amount of work remaining after 4 days = 1 - 35 = 25.

Hence, option (c).
 

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