Subject
Quantitative Aptitude
Topic
Average
The present ages of three person in proportions 4 : 7 : 9 Eight years ago, the sum of their ages was Find their present ages (in year)
The present ages of three person in proportions 4 : 7 : 9 Eight years ago, the sum of their ages was Find their present ages (in year)
ক)
8, 20, 28খ)
16, 28, 36গ)
20, 35, 45ঘ)
None of theseExplanation
Let their present ages be 4x, 7x and 9x years respectively. Then, (4x - 8) + (7x - 8) + (9x - 8) = 56 => 20x = 80 => x= 4. Therefore, Their present ages are 4x = 16 years,7x = 28 years and 9x = 36 years respectively.Related questions
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