Aptitude Day 47

Problem On Numbers

1. Three numbers are in the ratio 1:2:3 and their average is 180. What's the largest number?

Solution:
                Let the numbers be x, 2x and 3x.
                x+2x+3x = 180
                         6x = 180
                           x = 30
               The largest number is 3x = 90.

Problem to solve:

Three numbers are in the ratio of 4:2:3 and their product is 648. Find the smallest number.