Question

After charging for 1/3 of an hour, a phone is at 2/5 of its full power.

a) How long will it take the phone to charge completely?

b) Write a multiplication and division equation for this situation.

Answer A and B​

Answer 1

50 mins should be the answer

Answer 2

50 minutes for its full power

Explanation:

1/3=20 mins

20 mins=2/5 of battery

2/5x2= 4/5

4/5=40 mins

4/5+1/5 = 5/5 of battery

1/5=10 mins

so 40 mins+10 mins= 50 mins