Question

# Question 73 Find two numbers, whose sum is 100 and whose ratio is 9 : 16.

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Solution

## 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

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