Correct Answer - Option 2 : 60
GIven :
Age of Raman's wife = 50 years
Age of Raman is 40% more than his wife
Formula used :
Average = total value of all observations/Number of observations
Calculations :
Raman's age = 50 + 40% of 50 = 70 years
Total sum of the age of Raman and his wife = 50 + 70 = 120 years
Average of their age = 120/2
⇒ 60 years
∴ The average of age of Raman and his wife is 60 years