The average weight of a group of 75 girls was calculated as 47 kgs. It was later discovered that the weight of one of the girls was read as 45 kgs. Whereas her actual weight was 25 kg. What is the actual average weight of the group of 75 girls? (Rounded off of two digits after decimal)

### Note

The average weight of 75 girls = 47 kgs.

Total weight of 75 girls = 47 × 75 = 3525 kg.

Actual weight of 75 girls = x

The correct weight of 75 girls = (3525 - (45 + 25)) = (3525 - 20) = 3505 kg

**∴ Required average weight => x = 3505/75 = 46.73 kg.**