Houses and flats ratio9:5

flats and bungalows 10:5

there are 30 bungalows how many houses is there

Answer:108 houses

Step-by-step explanation:

Step 1: ratio of flats to bungalows is 10:5 and the bungalows are 30, therefore:

(10*30) / 5 = 60 flats

Step 2: the ratio of houses to flats is 9:5 and the number of flats is 60, therefore

9*60/5 = 108 houses