Question
A number is first increased by 80%, then increased by 50%
and then decreased by 50%. If the resultant number is 360, then find the original number.Solution
ATQ,
Let the original number be '100x'.
ATQ;
100x Ă— 1.8 Ă— 1.5 Ă— 0.5 = 360
Or, 135x = 360
So, x = 2.67
So, original number = 2.67 Ă— 100 = 267
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