The reduction of 20% in the price of rice enables a person to obtain 50 kg more for Rs. 450. Find the original price of rice per kg.
A. Rs. 1
B. Rs. 2
C. Rs. 1.25
D. Rs. 2.25
Answer: Option D
Solution(By Examveda Team)
$$\eqalign{ & {\text{Reduction of money}} = 450 \times \frac{{20}}{{100}} = 90 \cr & {\text{After reduction price}} = \frac{{90}}{{50}} = {\text{Rs}}{\text{. }}1.8{\text{ per kg}} \cr & {\text{Increase in price }}20\% = \frac{1}{5} \cr & {\text{4 unit}} = \frac{9}{5} \cr & {\text{1 unit}} = \frac{9}{{5 \times 4}} \cr & {\text{5 unit}} = \frac{9}{{5 \times 4}} \times 5 = \frac{9}{4} = {\text{Rs}}{\text{. }}2.25 \cr} $$Related Questions on Percentage
A. $$\frac{1}{4}$$
B. $$\frac{1}{3}$$
C. $$\frac{1}{2}$$
D. $$\frac{2}{3}$$
Join The Discussion