Q1 · easy · AI-verified
In a mixture of 60 litres, the ratio of milk to water is 2:1. How much water should be added to make the ratio 1:1?
- 10 litres
- 20 litres
- 15 litres
- 25 litres
Q2 · easy · AI-verified
A shopkeeper marks his goods 40% above cost price and gives a discount of 25%. What is his profit percentage?
- 15%
- 5%
- 10%
- 7.5%
Q3 · easy · AI-verified
A man's salary is increased by 20% and then decreased by 10%. What is the net percentage change in his salary?
- 5% increase
- 8% increase
- 12% increase
- 10% increase
Q4 · easy · AI-verified
A train 150 meters long crosses a platform 250 meters long in 20 seconds. What is the speed of the train in km/hr?
- 54 km/hr
- 60 km/hr
- 72 km/hr
- 80 km/hr
Q5 · easy · AI-verified
In a class of 40 students, the average marks in Mathematics is 75. If the marks of 5 students are not considered, the average of the remaining students becomes 78. What is the average marks of the 5 students whose marks were not considered?
- 57
- 60
- 63
- 66