The present ages of three persons are in the ratio of 4: 7:9 Eight years ago, the sum of their ages was 56. what are their present ages in years?

A 8, 20, 28
B 16, 28, 36
C 20, 35 , 45
D 12, 21, 27

Correct Answer: 16, 28, 36

Let, their present ages be, 4x, 7x, 9x respectively Then, ( 4x - 8) + ( 7x - 8) + ( 9x - 8) = 56 20x = 80 x = 4 Present ages are 4x = 16, 7x = 28 and 9x = 36 years
Bissoy MCQ
#গণিত #অনুপাত-সমানুপাত (Ratio-Proportion) #Jamuna Bank Ltd #Jamuna Bank Ltd - Probationary Officer - 21.12.2012

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