The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Find their present ages(in years).

A 8,20,28
B 16,28,36
C 20,35,45
D None of these

Correct Answer: 16,28,36

Hints: Let the present ages be 4x, 7x, and 9x years respectively, Then, (4x - 8) + (7x - 8) + (9x - 8) = 56 20x = 80 x = 80/20 x = 4 Therefore the present ages are 4x = 16 year's 7x = 28 years 9x = 36 years অতএব, present ages 16, 28, 36 years
Bissoy MCQ
#গণিত #Janata Bank Ltd #Janata Bank Ltd - Asst. Executive Officer - 09.01.2015

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