Q1 · medium · AI-verified
If the price of petrol increases by 25%, by what percentage should consumption be reduced to keep the expenditure same?
- 20%
- 25%
- 30%
- 15%
Q2 · medium · AI-verified
In a survey, 45% people like tea, 35% like coffee and 20% like both. What percentage of people like neither tea nor coffee?
- 40%
- 35%
- 30%
- 25%
Q3 · medium · AI-verified
A number is first increased by 25% and then decreased by 20%. What is the net percentage change?
- 0%
- 5%
- 3%
- -2%
Q4 · medium · AI-verified
The price of a commodity decreased by 10% but its consumption increased by 15%. What is the percentage change in expenditure?
- 3.5% increase
- 2.5% increase
- 5% decrease
- 4% increase
Q5 · medium · AI-verified
In a class of 60 students, 40% are girls. If 5 more girls join the class, what will be the new percentage of girls?
- 43.08%
- 45%
- 42%
- 40%