Question
Sum of the three numbers is 180. Ratio of the first
number to second number is 4:7 and the ratio of second number to third number is 7:9. Find the second number.Solution
ATQ, Let the second number be '7x'. So, first number = (4/7) x 7x = '4x' And, third number = (9/7) x 7x = '9x' According to the question, 4x + 7x + 9x = 180 Or, 20x = 180 So, 'x' = 180/20 = 9 Therefore, the second number = '7x' = 7 x 9 = 63
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