Question
Monthly income of P is Rs.18000 and his monthly savings
is Rs.12500. If his monthly income is decreased by 30% and monthly expenditure is decreased by 20% then find the approximate percentage decrease in his monthly savings.Solution
Expenditure of P = Rs.(18000 – 12500) = Rs.5500 New Saving = (0.7 × 18000 - 0.8 × 5500) = 12600 - 4400 = Rs.8200 Decrease % in Saving = [(12500 - 8200)/12500] × 100 = 34%
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