Question

In a village the number number of houses and flats are in a a ration 9:5

number of flats and bungalows are 10:3
there are 30 bungalows how many houses are in the village

Answer 1

180 houses

Explanation:

The 3 part of the ratio 10 : 3 represents 30 bungalows, thus

30 ÷ 3 = 10 ← value of 1 part of the ratio

10 parts = 10 × 10 = 100 ← number of flats

The 5 part of the ratio 9 : 5 represents 100 flats, thus

100 ÷ 5 = 20 ← value of 1 part of the ratio, then

9 parts = 9 × 20 = 180 ← number of houses