Question

A and B together can paint aroom in 18 days.they work together for 8 days and then B goes away.A finishes the rest of work in 15 days.How long would each take to finish the work separately?​

Answer 1

Answer:

27,54 IND.

Step-by-step explanation:

(A + B)×8 + 15 × A = (A + B)×18

23A + 8B = 18A + 18B

5A = 10B => A/B = 2/1

let A does => 2 units/day

& B => 1 units/day

total work = (2+1)×18 = 54 units

each will finish the work in

A =54/2=27days&B=54/1=54days