NIMCET 2020 Question Paper with solutions

Question : 76 of 120

Marks: +1, -0

Sum of ages of Anu and Bhanu is 10 years more than sum of ages of Bhanu, Chanu and Dhanu. Average age of Chanu and Dhanu is 19 years. Find the average age of Anu and Dhanu if Dhanu is 10 years elder than Chanu.

36 years
30 years
25 years
31 years

Validate

Solution:

A+B=10+B+C+D

........(1)

{C+D}/2=19

.....(2)

D=C+10

....(3)
By (1) & (2)

A=10. 38

A=48

By (2) & (3)

=C+10+C=38

C=14

D=24

{A+D}/2={48+24}/2=36

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