The average age of a group of 4 friends is 36 years. The youngest friend amongst them is 6 years old. What was the average age of the group at the time of the birth of the youngest friend?
A. 36 years
B. 38 years
C. 32 years
D. 40 years
Related Questions on Aptitude Placement Test for Engineering Students
Which of the following two ratios is greater 17:18 and 10:11?
A. 17/18
B. 10/11
C. Both are same
D. Cannot determine