Question

10. The ratio of the number of adults to the number of children is 3:5. If the average weight of the adults is 40 kg and the average weight of both the adults and children is 25 kg, then the average weight of the children is

(40-x)÷(x+25) = 3/5

200-5x = 75+3x

200-75 = 3x+5x

125 = 8x

x = 125/8
=15.625 (approximate value)

x=16kg
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Answer 1

Answer:

(40-x)÷(x+25) = 3/5

200-5x = 75+3x

200-75 = 3x+5x

125 = 8x

x = 125/8

=15.625 (approximate value)

x=16kg

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