Ratio and Proportion Practice Test 1

Question : 13 of 40

Marks: +1, -0

There are three numbers A, B and C given in such a way that one-third of A, one fourth of B and one-fifth of C are equal. Then the ratio between A, B and C is:

3 : 4 : 5
$1/3:1/4:1/5$
12 : 20 : 15
5 : 4 : 3
4 : 5 : 3

Validate

Solution:

A/3=B/4=C/5=k

Then, A = 3k, B = 4k, C = 5k
∴ A : B: C = 3k : 4k : 5k = 3 : 4 : 5

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