- A25%
- B20%
- C600%
- D125%
Step-by-Step Solution
Increase . Percentage increase is taken on the OLD value: . (Dividing by 3000 gives the wrong 20%.)
Answer: A) 25%
The bar graph shows the population of Rampur village in 2015 and 2025. By what percentage did the population increase?
Class 7Comparing QuantitiesComparing Quantities
Key idea: Reading the question carefully
Three things to check before you compute:
1. **What's being asked?** Profit % needs CP and SP. SI needs P, R, T.
2. **What units are the inputs in?** Time in months → convert to years (divide by 12). Rate already per annum → leave it.
3. **What's the base of the percentage?** Profit/loss % is on COST price, not selling price. Discount % is on MARKED price, not on what you actually paid.
1. **What's being asked?** Profit % needs CP and SP. SI needs P, R, T.
2. **What units are the inputs in?** Time in months → convert to years (divide by 12). Rate already per annum → leave it.
3. **What's the base of the percentage?** Profit/loss % is on COST price, not selling price. Discount % is on MARKED price, not on what you actually paid.
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