Question

Ifa: b = 2: 5, b: c = 1: 3 and c: d = 2: 7 find the ratio a: b: c:d​

Answer 1

Answer:

a : b : c : d = 4 : 10 : 30 : 105

Answer 2

Answer:

4:10:30:105

Step-by-step explanation:

2:5

1:3

2×1:5×1:5×3

2:5:15

2:7

2×2:5×2:15×2:15×7

4:10:30:105