Question

Pio can wash the dishes for 1hour her sister can wash dishes for half an hour how long would they wash dishes if they work together

Answer 1

Pio and her sister can finish the dishes in 20 minutes if they work together.

Explanation:

Given that:

Pio can wash the dishes in 1 hour or 60 minutes

Her sister can wash the dishes in half hour or 30 minutes.

Let,

x be the time it would take for both of them.

`(1)/(Pio's share)+(1)/(Her\ sister\ share) = (1)/(x)\\\\(1)/(60)+(1)/(30) = (1)/(x)\\\\(1+2)/(60)=(1)/(x)\\\\(3)/(60) = (1)/(x) \\\\(1)/(20)=(1)/(x) \\\\x=20`

Hence,

Pio and her sister can finish the dishes in 20 minutes if they work together.