5. The average age of Mahesh and Deepak is 13 years and that of Deepak and Aarati is 20 years. If the sum of ages of Aarati and Mahesh is 36 years, then what is Aarati's age ? (1) 13 years (2) 18 years (3) 20 years (4) 25 years
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Answered by
2
Answer:
from all the calculations answer is
4) 25 years
Answered by
1
Answer:
(4) 25 years.
Step-by-step explanation:
The avg.age of Mahes and Deepak = 13 years.
So ages of Mahes + Deepak = 13×2 years
= 26 years .-----(i)
Similarly,
Ages of Deepak + Arati = 20×2
= 40 years.------(ii)
And
Ages of Ages of Arati + Mahes = 36-----------(iii)
Now,
(ii)- (i)=> Age of Arati - Age of Mahes=14years--(iv)
(iii)+(iv)=> 2× age of Arati =50 years
=> Age of Arati =(50÷2) years
Hence Age of Arati = 25 years.
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