Question

Diego spent 1/3 of an hour playing on his phone, which used up 1/9 of his phone's full battery. How long could he play on his phone to use up his entire battery?

Answer 1

180 min or 3 hours

Explanation:

1/3 of 60 min is 20 min

20 min for 1/9

x min for 9/9

x=(9/9*20)/(1/9)

x=(180/9)/(1/9)

x=180/9 * 9/1

x=180