Question
Ratio of three numbers is of 7 : 3 : 5. If their sum is
7200, then what is the sum of the largest and the smallest number?Solution
ATQ, Let the numbers be 7x, 3x and 5x Then, according to the question, 7x + 3x + 5x = 7200 ⇒ 15x = 7200 ⇒ x = 480 ⇒ 7x = 3360, 3x = 1440 7x + 3x = 4800 ∴ Sum of the largest and smallest number = 4800
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