Question
If 20% of (A + B) = 30% of (A – B), then what
percentage of B is equal to A?Solution
(A+B) Ă—20/100 = (A-B) Ă—30/100 2A+2B =3A-3B 5B=A B/A =1/5 ATQ- B Ă— x% =A 1Ă— x/100 = 5 x = 500%
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