1. The average weight of four boys A, B, C, and D is 75 kg. The fifth boy E is included and the average weight decreases by 4 kg. A is replaced by F. The weight of F is 6 kg more than E. Average weight decreases because of the replacement of A and now the average weight is 72 kg. Find the weight of A.
1) 57 kg
2) 54 kg
3) 56 kg
4) 60 kg
5) 58 kg
2. If a discount of 16% is given on the marked
↧