Question
A person spends 60% of his income. His income increases
by 20% and his expenditure increases by 10%. If his new saving becomes Rs. 8100, then what was his original income?Solution
ATQ, Let original income = x Original expenditure = 60% of x = 0.6x Original saving = 0.4x New income = 1.2x New expenditure = 110% of 0.6x = 0.66x New saving = 1.2x - 0.66x = 0.54x Given, 0.54x = 8100 x = 8100 / 0.54 = 15000 Hence, the correct answer is Rs. 15000.
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