Find The Mean Height

Number Theory Level 1

5 plants have height=10 m; 10 plants have height = 20 m; 15 plants have height = 25 m;

Find mean height of plants in metres


The answer is 20.83.

Bisesh Padhi by Bisesh Padhi , 21, India

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2 solutions

Parveen Soni
Oct 27, 2014

Mean=(5 10+10 20+15*25)/30

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Bisesh Padhi
Oct 27, 2014

1)5 plants 10 meters... Total length = 50 m 2)10 plants 20 meters... Total length = 200 m 3)15 plants 25 meters.... Total length = 375 m

Mean = sum of all the total heights/total number of plants =625/30 = 20.83

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