The expenditure of a company increases by 25%, then increases by 30%, then further decreases by 20%.The overall percentage change in expenditure is:
Explanation:
Let the initial expenditure = Rs. 400
Expenditure after 25% increase = Rs. 500
Expenditure after another 30% increase = Rs. 650
Expenditure after 20% decrease = Rs. 520
∴ Overall % change = 120/400 × 100% = 30%
Hence, option (b).
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