Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is
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Q:
Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is
- 11 m 12.1 cmtrue
- 21 m 21.1 cmfalse
- 31 m 21 cmfalse
- 41 m 12 cmfalse
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