Question Bank › General Aptitude › Percentage › ABC26GN2412ABC26GN2412 · Percentage Subject: General Aptitude · Chapter: Percentage · Exam: 2005 · Marks: · Difficulty:
If the price of oil is increased by 30\%, then by how much percent a family should reduce its consumption so that the expenditure would remain the same?
(a) $15 \frac{1}{23} \%$
(b) $15 \frac{3}{14} \%$
(c) $23 \frac{1}{13} \%$
(d) $76 \frac{12}{13} \%$
Answer Explanation Decrease in consumption $=\left[\frac{\mathrm{R}}{(100+\mathrm{R})} \times 100\right] \%$ $$=\left(\frac{30}{130} \times 100\right) \%=23 \frac{1}{13} \% .$$
Explanation as extracted from the printed page; notation may be imperfect.
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