Question

ABC together do work in 6 hrs A alone do work in20 hrs B alone work in24 hrs in how much time did C work

Answer 1

In how many days C can finish the remaining work? A. 16. B. 32. C. 64. D. 96 ... So, by the time C is left alone 1 - (124/ 300 + 80/300) = 96/300 of the work is left ...

Answer 2

(A+B+C)×t=Work t=6
A×20=B×24=Work A=1.2B
2.2A×6+6C=Work
13.2A+6C=20A
6C=6.8A
A=0.88C
20A=Work=20×0.88C Work=17.6h