Question

three men A,B and C working together complete a work in 10,15 and 30 days. if A and B left the work for 4 days and 3 days respectively before completion of the work,how many days did it take to complete the work​

Answer 1

Answer:

A_____B_____C

10____15_____30

______30_____

3_____2______1

And given that

A left work 4 days before so, = 3 × 4 = 12

B left work 3 days before so, = 2 × 3 = 6

than total work = 30 + 12 + 6 = 48 unit

Time = Total work / Total efficiency

Time = 48 / 6 = 8 days