A) 1 yr
B) 2yr
C) 3 yr
D) 5yr
Correct Answer: C
Solution :
[c] Let the age of youngest child be x yr. Then, age of the other child \[=(x+2)\,yr\] Average age of 6 members today = 24 yr Sum of the ages of 6 members today \[=(24\times 6)\,yr=144\,yr\] \[(24\times 4)+(10\times 4)+x+(x+2)=144\] \[\Rightarrow \] \[2x=6\] \[\Rightarrow \] \[x=3\] Present age of youngest child = 3 yr |
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