Mathematics · Ratio and Proportion
If a : b = 1 : 2, b : c = 3 : 5, c : d = 5 : 4 and e : d = 5 : 6, then a : b : c : d : e =
- 11 : 2 : 3 : 4 : 5
- 215 : 30 : 50 : 40 : 48
- 39 : 18 : 30 : 24 : 20✓
- 43 : 6 : 10 : 8 : 7
Correct answer
9 : 18 : 30 : 24 : 20
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