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3 years ago

6

the mean height of 20 boys and 14 girls is 161 cm. if the mean height of the 14 girls is 151 cm. find the mean height of 20 boys

1 answer:

Alika [10]3 years ago

5 0

Answer:

Answer:171 cm

Step-by-step explanation:

161 = x +151/2

161*2 = x + 151

322 - 151 = 171

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