The average age of 8 persons in a committee is increased by 2 years when two men aged 35 years and 45 years are substituted by two women. The average age of these two women is:
34
40
48
none
Explanation:
According to the question,
Total age increased due to substitution is:8 $\times$ 2=16.
Removed total:45+35=80;
Added total:80+16=96;
Hence the required Average:96/2=48.