Question

Q.14.A man can make 12 birdhouses in 8 hours. How many hours will it take him to make 30 birdhouses?

Answer 1

Answer:

time taken to make 12 birdhouses=8 hrs.

let time taken to make 30 birdhouses=x

(make a table)

-------------------------------

| birdhouses | 12 | 30 |

-------------------------------

| time taken. | 8. | x. |

-------------------------------

(use cross multiplication method)

12. 30

----. = ------

8 x

12*x=8*30

12x= 240

x= 240/12

x= 20

20 hours is the answer.

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