Question

If a sprinkler waters 1 over 8 of a lawn in 1 over 2 hour, how much time will it take to water the entire lawn?

2 hours
4 hours
10 hours
16 hours

Answer 1

The correct answer is four hours.

Answer 2

4

Step-by-step explanation:

Let the entire lawn be 1

According to the question.

⅛ lawn is watered in ½ hour

1 lawn is watered in ½÷⅛

Calculate the reciprocal of ⅛ and that yields:

½×8

Reduce fraction:

4

Hence,

Our answer is b) 4