Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16…
2026
Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed?
- A.
20
- B.
25
- C.
33.33
- D.
30
Attempted by 19 students.
Show answer & explanation
Correct answer: A
Solution:
Let the initial quantity of daal consumed be m kg when the price was Rs. 16 per kg.
Total monthly expenditure = 16 × m = 16m.
Now, the price has increased to Rs. 20 per kg.
To keep the expenditure the same, the new quantity consumed should be:
New quantity = 16m / 20 = 0.8m.
Reduction in consumption = m - 0.8m = 0.2m.
Percentage reduction = (Reduction / Original) × 100 = (0.2m / m) × 100 = 20%.