Question

The average age of a group of 10 students is 20
years. If 4 more students join the group, the
average age increases by 2 year. What is the
average age of the new students?
Choose the best option
27 years
26 years
25 years
24 years​

Answer 1

Answer:

Bunuel wrote: The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group. What is the average age of the two new students who joined the group? Thus total age increases by 64 for 2 students , so average age of the 2 students is 64/2 = 32 years...