Quantitative Aptitude Practice Test Practice Questions & Worked Solutions

Q1 Medium • TCS NQT, Infosys

A train running at 54 km/hr crosses a bridge of length 250 meters in 30 seconds. What is the length of the train?

A 150 meters

B 200 meters

C 250 meters

D 300 meters

Q2 Easy • Wipro Elite, Accenture

If 12 men can complete a project in 18 days working 8 hours a day, in how many days can 16 men complete the same project working 9 hours a day?

A 10 days

B 12 days

C 14 days

D 16 days

Q3 Easy • TCS Ninja, Infosys

Two pipes A and B can fill a cistern in 20 and 30 minutes respectively. If both open together...

A 10 minutes

B 12 minutes

C 15 minutes

D 25 minutes

Q4 Easy • TCS, Infosys

A train 240 m long passes a telegraph post in 24 seconds. How long will it take to pass a railway platform 650 m long?

A 65 seconds

B 89 seconds

C 100 seconds

D 115 seconds

Q5 Medium • Accenture, Capgemini

A can complete a work in 12 days and B in 15 days. They work together for 5 days and then B leaves. How many days will A take alone to finish the remaining work?

A 3 days

B 5 days

C 7 days

D 4.5 days

Q6 Medium • TCS, Cognizant

Two pipes A and B can fill a cistern in 20 and 30 minutes respectively, and a waste pipe C can empty it in 15 minutes. If all three pipes are opened together, how long will it take to fill the tank?

A 40 minutes

B 50 minutes

C 60 minutes

D 120 minutes

Q7 Easy • Infosys, Wipro

A sum of ₹12,500 amounts to ₹15,500 in 4 years at the rate of simple interest. What is the rate of interest per annum?

A 5%

B 6%

C 7.5%

D 8%

Q8 Easy • TCS Ninja, Accenture

A merchant marks his goods 25% above cost price and allows a discount of 10% on the marked price. What is his net gain percentage?

A 10%

B 12.5%

C 15%

D 17.5%

Q9 Medium • Amazon, Infosys

In how many different ways can the letters of the word 'LEADING' be arranged so that the vowels always come together?

A 360

B 720

C 5040

D 1440

Q10 Easy • Cognizant, TCS Digital

Two dice are thrown simultaneously. What is the probability of getting a sum greater than 9?

A 1/6

B 5/36

C 1/4

D 7/36

Q11 Easy • Tech Mahindra, Capgemini

A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

A 3 hours

B 4 hours

C 5 hours

D 6 hours

Q12 Easy • TCS, Wipro

A sum invested at compound interest doubles itself in 5 years. In how many years will it become 8 times of the initial principal at the same annual interest rate?

A 10 years

B 15 years

C 20 years

D 25 years

Q13 Easy • Cognizant, Accenture

A shopkeeper sells two wristwatches for ₹1,980 each. On one he gains 10% and on the other he loses 10%. What is his overall gain or loss percentage?

A Neither gain nor loss

B 1% loss

C 1% gain

D 2% loss

Q14 Easy • HCLTech, LTI Mindtree

The average age of a class of 30 students is 14 years. If the teacher's age is included, the average age increases by 1 year. What is the teacher's age?

A 42 years

B 45 years

C 44 years

D 40 years

Q15 Medium • TCS Digital, Infosys SP

A bag contains 5 red balls, 4 blue balls, and 3 green balls. If two balls are drawn at random without replacement, what is the probability that both are red?

A 5/33

B 10/33

C 5/66

D 25/144

Q16 Easy

An item priced at Rs 800 is discounted by 15%. What is the selling price?

A Rs 700

B Rs 680

C Rs 650

D Rs 720

Q17 Easy

The ratio of red pens to blue pens is 3:5. If there are 64 pens in total, how many are red?

A 24

B 40

C 32

D 16

Q18 Easy

The average of five numbers is 18. Four of the numbers sum to 70. What is the fifth number?

A 16

B 20

C 22

D 18

Q19 Medium

A value is increased by 20% and then decreased by 20% of the new value. What is the net change?

A No change

B 8% decrease

C 4% increase

D 4% decrease

Q20 Medium

A 20-litre mixture contains 30% acid. How many litres of pure acid must be added to make the mixture 50% acid? Assume volumes add.

A 4 litres

B 10 litres

C 8 litres

D 6 litres

Quantitative Aptitude Practice Test Practice Questions (20)