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In a class,20 students are 1.15m tall15 students are1.20m tall and 5 students are1.25mtall,what is the average height of the students |
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Answer» Given Height of 15 students =1.20m Height of 5 students=1.25m Average height = \frac{20 \TIMES 1.15 + 15 \times 1.20 + 1.25 \times 5}{20 + 15 + 5} 20+15+5 20×1.15+15×1.20+1.25×5
= \frac{23 + 18 + 6.25}{40} 40 23+18+6.25
=47.25/40 =1.18125m Step-by-step explanation: HOPE it helps u po |
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