Question

in a village the number of houses and the number of flats are in the ratio 7:4 there are 49 houses in the village. a. how many flats are there? b.explain in simple English how you got your answer.

Answer 1

a) 28 flats

Explanation:

A) Let the no. of flats be x

Lets take a proportion:

=> 7:4 :: 49 : x

Writing it in fraction form

=>
`(7)/(4) = (49)/(x)`

Cross Multiplying

=> 7x = 196

Dividing both sides by 7

=> x = 28 flats

B) I got the answer by simply taking the proportion.