Question

5. Ifa:b=5:6 andb:c=18:23, finda:b:c.
6. Ifa:b=3:4 and b:c=10:17, finda:c.​

Answer 1

Answer:

cross multiplication is used

Explanation:

then you will find easily ,and substitute it

Answer 2

Answer:

5). 15: 18:23

6). 15:20:34

Explanation:

5 6 6

× × ×

18 18 23

__________

90 : 108: 138

__________ finaly we get 15:18:23