A) 22 yr
B) 24 yr
C) 28 yr
D) 30 yr
Correct Answer: D
Solution :
Let the average age of two new men \[=x\,yr\] \[\therefore \] Total age of two new men \[=2x\,yr\] Let the average age of 8 men \[=y\,yr\] \[\therefore \] \[8y-21-23+2x=8(y+2)\] \[\Rightarrow \] \[8y-44+2x=8y+16\] \[\Rightarrow \] \[2x=60\] \[\Rightarrow \] \[x=30\]You need to login to perform this action.
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