Ratio and Proportion - Arithmetic Aptitude Questions and Answers

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If a: b is 3: 4 and b: c is 2: 5. Find a: b: c.

3: 2: 5

3: 6: 5

3: 4:10

2: 3: 4

Answer : Option C

Explanation :

The ratio of a: b is 3: 4
The ratio of b: c is 2: 5

Note: To find the ratio in such questions, multiply a to b, then b to b, and then b to c.

a: b: c = 3*2: 4*2: 4*5
a: b: c = 6: 8: 20
So, a: b: c = 3: 4: 10

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