Question

A and B together can do a piece of work in 18 days, while B alone can finish it in 30 days. In how many
days can A alone finish the work?​

Answer 1

Answer:

45

Step-by-step explanation:

let us assume total work is 90 units

eq 1: A and B together can do it in 18 days , which means 90/18= 5 units per day

eq 2: B can do 90 units work in 30 days => 3 units per day

from eq 1 A and B can do 5 units , from eq 2 B can do 3 units , therefore A can do 2 units per day

Finally A can Complete 90 units of work in 45 days