Rice is now being sold at Rs 29 per kg. During the last month, its cost was Rs 25 per kg, By how mauch percentage should a family reduce its consumption , so as to keep the expenditure the same as before ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 14%
Let's assume the quantity = 100 kg
Initial cost = 25 × 100 = Rs 2500
According to the question,
Let's assme the new quantity is x.
29 × x = Rs 2500
x = 86.2 kg
Percentage change in quantity = (100 - 86.2)/100 × 100
= 13.8% ≈ 14%