Get 20 RRB NTPC mocks for just Rs. 149. Enroll now
The ratio of the average ages of three people and the other two in a group of five people is 9 : 7. If the difference of their averages is 12, then find out the average age of all 5 people?
Create a FREE account and get:
Ask doubts feature is currently unavailable for you. You can reach us at firstname.lastname@example.org for any further details/doubts.
Boost your Prep!