Q1 · hard · AI-verified
A shopkeeper marks his goods 40% above cost price. He gives a discount of 15% and still makes a profit of ₹425 on an article. What is the cost price of the article?
- ₹2,500
- ₹2,750
- ₹3,000
- ₹3,250
Q2 · hard · AI-verified
A train travels from Station A to Station B at 80 km/h and returns at 60 km/h. If the total journey time is 7 hours, what is the distance between the two stations?
- 210 km
- 200 km
- 240 km
- 280 km
Q3 · hard · AI-verified
In a mixture of 60 liters containing milk and water in the ratio 7:3, how many liters of water should be added to make the ratio 1:1?
- 18 liters
- 24 liters
- 30 liters
- 36 liters
Q4 · hard · AI-verified
Three pipes A, B, and C can fill a tank in 12, 15, and 20 hours respectively. All three pipes are opened together for 3 hours, then pipe C is closed. In how many more hours will the tank be completely filled?
- 3.5 hours
- 2.5 hours
- 4 hours
- 3 hours
Q5 · hard · AI-verified
A train crosses a platform 180 meters long in 20 seconds and crosses a signal post in 12 seconds. What is the length of the train?
- 200 meters
- 225 meters
- 240 meters
- 270 meters