Question

(1) 5
(2) 4
Average age of 5 boys is 13 yr. One more boy joins them and the average
becomes 12 yr. The age of the boy who joins last is
(1) 12 yr
(2) 13 yr
(3) 14 yr
(4) 7yr​

Answer 1

Answer:

posted by kartik bhuwad I have a humanoid robot which received