Question

Hiro painted his room. After 3 hours of painting at a rate of 8 square meters per hour, how many square meters does he have left to paint?

1) 20
2) 24
3) 28
4) 32

Answer 1

Hiro has painted 24 square meters after working for 3 hours at a rate of 8 square meters per hour. The options provided do not allow us to determine how much he has left to paint without additional information about the room's total area.

Step-by-step explanation:

The student asks how many square meters Hiro has left to paint after working for 3 hours at a rate of 8 square meters per hour. To find out the total area painted, we need to multiply the number of hours Hiro painted by the rate at which he painted. So, Hiro painted 3 hours × 8 sq meters/hour = 24 sq meters in total.

Without the total area of the room, we cannot determine how much he has left to paint just from the information provided. However, among the options given, since Hiro has already painted 24 square meters, the remaining options would refer to different room sizes and are not connected to the work Hiro has already completed.