DSSSB · Mathematics
If the average weight of 15 boys is 30 kg that of 5 boys is 20 kg and that of the other 3 boys is 10 kg, then find the average weight of all boys. (Round off your answer to two decimal places.)
- 25.22 kg
- 27.21 kg
- 22.21 kg
- 24.22 kg
If the average weight of 15 boys is 30 kg that of 5 boys is 20 kg and that of the other 3 boys is 10 kg, then find the average weight of all boys. (Round off your answer to two decimal places.)
- 25.22 kg
- 27.21 kg
- 22.21 kg
- 24.22 kg
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