The average weight of 10 boys is increased by 3 kg if one of them weighing 40 kg is replaced by a new boy. The weight of the new boy is:
- AOption (a)
45 kg
- BOption (b)
70 kg
- COption (c)
80 kg
- DOption (d)
40 kg
View answer & explanationHide answer & explanation
Correct answer
45 kg















