Question
A spends 24% of his monthly income on household
expenses, 16% on entertainment, 12% on education, and saves the rest. If the savings are 3288, then what is the monthly income of A?Solution
Let the earning be = 100x Saving = 25x  Expenditure = 75x  After increment new earning = 128x New expenditure = (120/100) × 75x = 90x New saving = 128x- 90x = 38x Saving increased by = 38x -25x = 13x Increase percentage (13x /25x) × 100= 52%
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