Question

(a) rupee480 is divided equally among x children. If the number of children were 20 more then
each would have got rupee12 less. Find x.
​

Answer 1

Answer:

each get = 480/x

A/q,

480/x - 480/(x+20) = 12

[480(x+20) - 480x]/x(x+20) = 12

9600 = 12x(x+20)

800 = x²+20x

x² + 20x - 800 = 0

x² + 40x - 20x - 800 = 0

(x+40)(x-20) = 0

x = 20

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