Question 73
Find two numbers, whose sum is 100 and whose ratio is 9 : 16.
Let the two numbers are 9x and 16x, whose sum is 100
∴9x+16x=100⇒25x=100⇒x=10025=4⇒x=4 Hence, the two numbers are 9x=9×4=36 16x=16×4=64