Question

a can build a room in 50 days A and B together can build a room in 25 days they worked together for 15 days and then B goes away in how many days will a finish the remaining work​

Answer 1

Answer:

20 days

Step-by-step explanation:

A builds 1 room in 50 days=1 room/50 days=1/50

room/day

A+B build 1 room in 25 days=1 room/25 days=1/25

room/day

In 15 days A+B build: 15 days(1/25 room/

day)=15/25 of the room

This leaves 10/25 or 20/50 of the room for A to

complete alone

(20/50 room)/((1/50 room/day)=20 days

ANSWER It would take A 20 more days to

complete the room alone.