Quantitative Aptitude - MCQ Practice Questions

A merchant bought goods for ₹10,000. He sold them at 20% profit. What is the average cost if he later bought more goods for ₹15,000 at a 10% loss?

The average of 7 consecutive odd numbers is 39. What is the largest number?

A train covers 25% of its journey in 2 hours at 50 km/h. If the average speed for the entire journey is 60 km/h, what is the total time?

A person invests ₹5,000 at 8% SI and ₹7,500 at 12% SI for 2 years. What is the average interest rate on total investment?

The average age of a group increases by 2 years when a person of age 28 is replaced by a person of age 38. What is the size of the group?

Three containers have milk with average concentration 40%, 50%, and 60%. If equal quantities are mixed, what is the average concentration?

A shopkeeper sells 3 items at ₹200 each with 20% profit, 2 items at ₹300 each with 25% loss. What is his average profit/loss percentage?

Two pipes A and B fill a tank in 12 hours and 15 hours respectively. If both work together and pipe C drains it in 20 hours, how long to fill the tank?

A boat covers 45 km downstream in 3 hours and 35 km upstream in 5 hours. What is the average speed of the boat in still water?

The average age of 6 people increases by 2 years when one person aged 40 is replaced. What is the age of the new person?

A trader buys 100 items at an average cost of ₹50 each. He sells 60 items at 20% profit and 40 items at 10% loss. What is his overall profit/loss percentage?

A train covers $\frac{1}{3}$ of its journey at 40 km/h, $\frac{1}{3}$ at 50 km/h, and $\frac{1}{3}$ at 60 km/h. What is the average speed?

The average of 8 consecutive even numbers is 15. Which is the smallest number?

A boat's speed in still water is 15 km/h. It takes 4 hours upstream and 2 hours downstream to cover the same distance. What is the speed of the current?

A compound interest is earned on ₹10,000 at 8% per annum for 2 years. What is the average annual interest?

Pipe A fills a tank in 30 hours, and Pipe B fills it in 20 hours. If both pipes work together, what is the average time taken by each pipe to fill $\frac{2}{5}$ of the tank?

A boat travels upstream at 8 km/h and downstream at 12 km/h. What is the average speed of the boat for the entire journey covering equal distances both ways?

A train covers $\frac{1}{4}$ of its journey at 50 km/h, $\frac{1}{2}$ at 60 km/h, and remaining at 75 km/h. What is the approximate average speed of the train?

A merchant mixes two types of rice costing ₹40/kg and ₹60/kg in ratio 3:2. What is the average cost per kg of the mixture?