QUESTION OF THE DAY - 25/09/2016
The average height of 18 boys in a class is170 cm. If the heights of 15 new boys are added, the new average increase by 3 cm. What is the average height of the 15 new boys?
- 176.6 cm
- 172.3 cm
- 178.4 cm
- 174.6 cm
- None of these
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