Question

Two car washers Lydia and Jackie are working on your car . Lydia takes 2 hours while Jackie takes 1 if they both work together how many hours do the car washers take if they work together? 1/2, 3/2, 2/3, 4/3.

Answer 1

Step-by-step explanation: 2/3

Answer 2

Lydia washes 1/2 car in 1 hour. Jackie washes 1/1 car in 1 hour.

1/2 + 1/1 = 1/2 + 2/2 = 3/2

They both washes 3/2 cars in 1 hour and so they washes the car in 2/3 of an hour. 2/3 hour = 40 minutes