Aptitude is an essential component of almost all placement tests. In case of TCS written test, aptitude-related questions are asked in the first round. These questions test the logical and mathematical abilities of the candidates. Here, we have given a sample TCS aptitude test, with the focus on mathematical part. Solve the given questions and check your preparation level:

**In a 200 meters race, A beats B by 20 meters, while in a 100 meters race, B beats C by 5 meters. A beats C in a kilometer race by**- 105 meters
- 225 meters
- 205 meters
- 145 meters

Answer: Option D

When A = 200, B = 180.

When B = 100, C = 95.

Make B = 900. A will be 1000. C will be 855.**A person purchases tomatoes from each of the 4 places at the rate of 1 kg, 2 kg, 3 kg, 4 kg per rupee respectively. On an average he has purchased x kg of tomatoes per rupee. Then the value of x is**- 2
- 2.5
- 1.92
- None of these

Answer: Option B

x = 10/4 = 2.5

**The value of 5**^{1/4}× (125)^{0.25}is- 5
- 25
- 50
- 10

Answer: Option A

5^{1/4}× (125)^{0.25}=5^{1/4 + 3/4}=5^{1}=5

**A sum of money doubles itself in 7 years. In how many years it becomes four fold?**- 35 years
- 28 years
- 14 years
- 21 years

Answer: Option D

Double in seven years.

So 4 times will be in = 7 × (4 − 1) = 21 years.**A fast train takes 3 hours less than a slow train for a journey of 600 km, If the speed of the slow train is 10 km/hr less than that of the fast train, the speeds of the two trains are**- 60 km/hr and 70 km/hr
- 50 km/hr and 60 km/hr
- 40 km/hr and 50 km/hr
- 30 km/hr and 40 km/hr

Answer: Option C

(600/x)-(600/x+10)=(3/1)

Solving this, we get x = 40TCS Preparation Links- Sample Aptitude Questions of TCS
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**When 75% of a number is added to 75, the result is the same number. The number is**- 150
- 300
- 100
- 450

Answer: Option B

Let the number be equal to x.

3x/4 +75 = x

Hence x=300**If 5 spiders can catch five flies in five minutes, how many flies can hundred spiders catch in 100 minutes?**- 100
- 1000
- 500
- 2000

Answer: Option D

5 × 5 × x = 100 × 100 × 5 ⇒ x = 2000.**A car travels 25km an hour faster than a bus for a journey of 500km. If the bus takes 10 hours more than the car, then the speeds of the bus and the car are**- 25km/hr and 40km/hr respectively
- 25km/hr and 60 km/hr respectively
- 25km/hr and 50km/hr respectively
- None of these

Answer: Option C

Let the speeds of bus and car be x and y. Here, y = x +25

As per the question, (500/x)-(500/x+25)=10

⇒ 500(x + 25) − 500(x) =10x(x+25) ⇒ x = 25, y = 50.

For such questions, you can also use direct substitution from the given choices**An article is bought for Rs. 600 and sold for Rs. 750. The gain percent is:**- 20%
- 25%
- 30%
- None

Answer: Option B

**If P : Q = 3 : 4 and Q : R = 5 : 6, then P : Q : R is:**- 3 : 4 : 6
- 3 : 5 : 6
- 15 : 20 : 24
- 5 : 6 : 3

Answer: Option C

P:Q=3:4, Q:R=5:6, P:Q:R=3×5:5×4:6×4

⇒ 15:20:24