y varies inversely as x if x increases by 25% change in y is
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Given , y varies inversely to x . So , y = k x Now , x is increased by 25 % So , new value of x = x + 25 % of x = x + 1 4 x = 5 x 4 So , New value of y = k 5 x 4 = 4 k 5 x Percentange change of y = old value of y - new value of y old value of y = k x - 4 k 5 x k x × 100 % = 1 5 × 100 % = 20 % Since y varies inversely.
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20 Percent decrease is your answer dear
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75%
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