The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the average weight of all the boys in the class.	Choose the correct answer:
A) 47.55 kgs	B) 48 kgs	C) 48.55 kgs	D) 49.25 kgs	E) none of these

Rationale: "solution required average = ( 50.25 x 16 + 45.15 x 8 / 16 + 8 ) = ( 804 + 361.20 / 24 ) = 1165.20 / 24 = 48.55 answer c"
Answer: C