A discount of 20% in the price of rice enables X to buy 5 kg more rice for Rs. 100. What is the reduced price of rice per kg?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Rs. 4
Let the initial price of rice be x rs/kg.
Reduced price of rice = x - 20% of x = 4x/5 rs/kg
A/c to question ,
100/(4x/5) - 100/x = 5
(500/4x) - (100/x) = 5
(500 - 400)/4x = 5
100 = 20x
x = 5
Reduced price 4x/5 i.e 4 × 5/5 = 4 rs/kg.