state gov Kolkata Police Constable Mock Test 2024 Quantitative Aptitude Percentage

The price of coal is increased by 20%. By what per cent a family should decrease its consumption so that expenditure remains same? 

1
40%
2
\(23 \frac{1}{3} \%\)
3
20%
4
\(16 \frac{2}{3} \%\)
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