Quantitative Aptitude - MCQ Practice Questions

A shopkeeper allows successive discounts of 20% and 15%. What is the equivalent single discount?

A cistern can be filled by pipe A in 8 hours and emptied by pipe B in 12 hours. If both are opened simultaneously and the cistern is already $\frac{1}{4}$ full, in how much time will it be full?

Two trains are running in opposite directions at 60 km/h and 40 km/h respectively. They take 12 seconds to completely cross each other. What is their combined length?

A train crosses a 200m platform in 12 seconds at a speed of 72 km/h. What is the length of the train?

The price of a commodity increases by 20% one year and decreases by 10% the next year. What is the net change after two years?

A shopkeeper marks articles 40% above cost price and gives a discount of 25%. What is his profit percentage?

Two workers A and B can complete a job in 8 days and 12 days respectively. A starts the work and after 2 days, B joins. In how many more days will the work be completed?

A train travelling at 90 km/h takes 8 seconds to cross another train travelling at 54 km/h in the opposite direction. What is the sum of their lengths?

If a cistern is filled by three pipes in 4, 6, and 12 hours respectively, how long will it take to fill if all three are opened together?

A price is increased by 30%, then decreased by 30%. What is the net change?

X and Y together can complete a work in 18 days. X alone can complete it in 30 days. In how many days can Y alone complete the work?

Rs. 1000 is invested at 10% per annum compound interest for 2 years. What is the final amount?

A boat goes 30 km upstream in 6 hours and 30 km downstream in 3 hours. What is the speed of the boat in still water?

A product's price increased by 25%, then decreased by 20%. What is the net change?

Three pipes A, B, and C can fill a tank in 6, 8, and 12 hours respectively. If all three are opened together, what fraction of the tank is filled in 1 hour?

A train 180m long crosses another train 220m long coming towards it in 9 seconds. If the first train's speed is 40 km/h, what is the speed of the second train?

A man sells an item for Rs. 1200 at 20% profit. What is the cost price?

A cistern has a drain pipe that empties it in 20 hours. If an inlet pipe fills it in 15 hours, how long will it take to fill if both are open?

Two pipes A and B fill a tank in 12 hours and 15 hours respectively. If both are open and there's a drain pipe C that empties it in 20 hours, how long will the tank take to fill?

A person buys a watch for Rs. 400 and sells it for Rs. 520. What is the profit percentage?