The average weight of apples in a basket is 50 kg. 6 more apples with the average weight of 60 kg are added in the basket. If the average weight of the basket is increased by 5 kg, then find the number of apples in the basket originally.

6

Let's assume total number of apple in basket= n

New Total weight = Old Total weight + Added weight

55 x (n+6) =  60 x 6 + 50n

5n = 30

n = 6