Math, asked by abhay7363, 1 year ago

ratio of age of sia age and amisha age are in ratio of 4:5 .five year from now the ratio pf their age will be 6:7 .find their present age

Answers

Answered by pratyush4211

Ratio of age of sima and amisha=4:5
Let Ratio=4x:5x
AFTER five years=4x+5:5x+5
There age will in=6:7
A/Q
4x+5:5x+5=6:7
$= \frac{4x + 5}{5x + 5} = \frac{6}{7}$
$= 7(4x + 5) = 6(5x + 5) \\ = 28x + 35 = 30x + 30 \\ = 35 - 30 = 30x - 28x \\ = 5 = 2x \\ = x = \frac{5}{2 } \\ = x = 2.5 \\ = sia = 4x = 4 \times 2.5 = 10years \\ = amisha = 5x = 5 \times 2.5 = 12.5years \\ so \: sia = 10years \\ amisha = 12.5years \\$
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