Subject
Quantitative Aptitude
Topic
Average
The average age of a man and his son is 18 years. The ratio of their ages is 5:1 respectively. What will be the ratio of their ages after 6 years?
The average age of a man and his son is 18 years. The ratio of their ages is 5:1 respectively. What will be the ratio of their ages after 6 years?
ক)
10:3খ)
5:2গ)
4:3ঘ)
3:1ঙ)
None of theseExplanation
Let age of son and man = a and 5a respectively, ∴ Average of age = ⇒ 6a = 18 × 2 ⇒ a = 6 Then, present age of man and son = 30 and 6 years respectively, After 6 years, age of son = 12 years Age of man = 30 + 6 = 36 years ∴ Required ratio = 36 : 12 ⇒ 3 : 1Related questions
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