TCS Ninja aptitude Questions | TCS NQT Ninja Digital Aptitude Questions | TCS aptitude questions for practice | TCS previous year questions

TCS Ninja aptitude Questions | TCS NQT Ninja Digital Aptitude Questions | TCS aptitude questions  for practice | TCS previous year questions 

 1. In a staircase, there are  10 steps. A child is attempting to climb the staircase. Each time she can either make 1 step or 2 steps.  In how many different ways can she climb the staricase?

a) 10

b) 21

c) 36

d) None of these

2. A boy buys 18 sharpners, (Brown/white) for Rs.100.  For every white sharpener, he pays one rupee more than the brown sharpener. What is the cost of white sharpener and how much did he buy?

a) 5, 13

b) 5, 10

c) 6, 10

d) None of these

3. Letters of alphabets no from 1 to 26 are consecutively with 1 assigned to A and 26 to Z.  By 27th letter we mean A, 28th B. In general 26m+n, m and n negative integers is same as the letters numbered n. 

Let P = 6, strange country military general sends this secret message according ot the following codification scheme.  In codifying a sentence, the 1st time a letter occurs it is replaced by the pth letter from it.   2nd time if occurred it is replaced by P^2 letter from it. 3rd time it occurred  it is replaced by p^3 letter from it.   What is the code word for ABBATIAL

a) GHNNZOOR

b) GHKJZOHR

c) GHHGZOGR

d) GHLKZOIR

4. Of a set of 30 numbers, average of 1st 10 numbers is equal to average of last 20 numbers.  The sum of last 20 numbers is?

a) 2 x sum of last 10 numbers

b) 2 x sum of 1st 10 numbers

c) sum of 1st 10 numbers

d) Cannot be determined

5. In how many ways a team of 11 must be selected a team 5 men and 11 women such that the team must comprise of not more than 3 men.

a) 1565

b) 2256

c) 2456

d) 1243

6. The wages of 24 men and 16 women amount to 11600 per day. Half the number of men and 37 women has same money.   The daily wages paid to each man is

a) 375

b) 400

c) 350

d) 325

7. A number when successively divided by 5, 3, 2 gives remainder 0, 2, 1 respectively in that order.  What will be the remainder when the same number is divided successively by 2, 3, 5 in that order

a) 4, 3, 2

b) 1, 0,4

c) 2, 1, 3

d) 4, 1, 2

8. a,b,c,d,e are distinct numbers. if (75-a)(75-b)(75-c)(75-d)(75-e)=2299 then a+b+c+d= ?

Hint:2299 is divisible by 11.

9. If A ^B means A raised to the power of B, in which of the following choices must P be greater than Q

a) 0.9^P=0.9^Q 

b) 0.9^P=0.92^Q 

c) 0.9^P>0.9^q

10. 2 gears one with 12 teeth and other one with 14 teeth are engaged with each other. One teeth in smaller and one tooth in bigger are marked and initially those 2 marked teeth are in contact with each other. After how many rotations of the smaller gear with the marked teeth in the other gear will again come into contact for the first time?

a)7

b) 12 

c) Data insufficient

d) 84

____________________________________

ANSWERS :-

1) 

Ans: d

Use fibonnacci series, with starting two terms as 1, 2. So next terms are 3, 5, 8, 13, 21, 34, 55, 89

2) 

Ans: C

Assume that he bought b, brown sharpeners and w, white sharpeners and the cost of brown sharpener is x and white sharpener is x + 1

So w(x+1) + bx  = 100

w + b = 18

b = 18 - w

Substituting in equation 1, we get w(x+1) + (18 -w)x = 100 so w + 18 x = 100

Take option 1: If white sharpners are 13, x = (100 - 13) /18  = 4.833

Option 2, If white sharpeners are 10, x = (100 - 10)/18 = 5 So white sharpeners cost is 6.

Option 3 Satisfies this condition.

3)

Ans: D

A should be coded as 1+6 = G (it occurred for first time)

B should be coded as 2+6 = H (it occurred for first time)

B Should be coded as 2 + 36 = 38 - 26 = 12 = L (it occurred for second time)

Option D is correct

4)

Ans: B

Let average of first 10 numbers is a. Then sum = 10a

Average of last 10 nmbers also a. Then their sum = 20a

From the options B correct

5)

Ans: B

Maximum 3 men can be played which means there can be 0, 1, 2, 3 men in the team.

(5c0*11c11)+(5c1*11c10)+(5c2*11c9)+(5c3*11c8)=2256

6) 

Ans: C

24m + 16w = 11600

12m + 37 w  = 11600

Solving we get 12 m = 21w

Substituting in the first equation we get, 42w + 16 w = 11600  w = 200

M = 350

7)

Ans: B

[ (1 x 3) + 2] = 5

[(5 x 5) + 0] = 25

Let the number = N

Now N = 5K

K = 3L + 2

L = 2M + 1

K = 3(2M + 1) + 2 = 6M + 5

N = 5(6M + 5) = 30 M + 25

For M = 0 we get the least number as 25.  Now when 25 is divided by 2, we get 12 as quotient and 1 as remainder. When 12 is divided by 3 we get 4 as quotient, and 0 as remainder. When 4 is divided by 5 we gt 4 as remainder.

8)

Two of the terms in the given expression should equal to 1. As all the digits are distinct, two of the terms should be negative.

One possible solution = (75 - 64)(75 - 56)(75 - 86)(75 - 74)(75 - 76)

Then a + b + c + d + e = 64 + 56 + 86 + 74 + 76 = 356

But as the sum of only 4 terms was asked, we have to subtract one term.

So given answer can be one of 292, 306, 270, 282, 280

10)

Correct Option : A

Assume the distance between the teeth is 1 cm. Then the circumference of first gear is 12 cm and the second is 14 cm.

Now LCM (12, 14) = 84. So to cover 84 cm, the first gear has to rotate 

 84/12 = 7 rounds (the second gear rotates 84 / 14 = 6 rounds as it is bigger)