- Home
- Standard 13
- Quantitative Aptitude
7.Profit and Loss
medium
$10 \%$ discount and then $20 \%$ discount in succession is equivalent to total discount of.......$\%$
A
$15$
B
$30$
C
$24$
D
$28$
Solution
$10 \%, 20 \%$ discount is equivalent to
Let us consider marked price as $100 ₹$
$S.P.$ $=(100-10) \% \times(100-20) \% \times 100$
$=.9 \times .8 \times 100$
$Rs.=72$
Discount $\%=\frac{100-72}{100} \times 100=28 \%$
Standard 13
Quantitative Aptitude
Similar Questions
medium