defence exam Indian Navy Fireman/Fire Engine Driver Mock Test 2024 Quantitative Aptitude Ratio and Proportion Compound Ratios

If a : b = 2 : 3, b : c = 6 : 10, c : d = 20 : 30 and d : e = 60 : 80 then what is a : e?

1
2 : 5
2
5 : 1
3
1 : 5
4
4 : 15
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