Question
If 35% of ‘A’ is 50 less than 25% of ‘B’, then
find 200% of ‘B’, given that (A + B) = 800.Solution
ATQ, 0.35A + 50 = 0.25B Or, 50 = 0.25B - 0.35A ........ (I) Also, A + B = 800 Or, A = 800 - B ...... (II) Using (I) and (II), 50 = 0.25B - 0.35(800 - B) Or, 50 = 0.25B - 280 + 0.35B Or, 330 = 0.6B So, B = 550 Required value = 550 × 2 = 1100
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