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Aptitude Day 81


Ratio and Proportion:

 1. The ratio of 3 numbers is 1:2:3 and the sum of their squares is 504. The sum of the numbers is:

 Solution:
                Let the numbers be x, 2x and 3x.
                x2+(2x)2+(3x)2 = 504
                14x2 = 504
                x2 =  36.
                x = 6.
                Their sum is 6+12+18 = 36.

A problem to solve:

 The ratio of 3 numbers is 2:3:7 and their product is 5250. The numbers are:

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