COGNIZANT (CTS) Placement Kits For Fresher

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COGNIZANT (CTS)

1)   Using the digits 1,5,2,8 four digit numbers are formed and the sum of all possible such numbers.
      Ans   :   106656

2)   Diamond\'s value is proportional to its weight2  .When the diamond broke wts of pieces in ratio 1:2:3;4:5.
      Total loss in value is 85,000.What is the value of the diamond twice the wt of the original diamond.
      Ans  : 45,000

3)   Find the product of the prime numbers between 1-20
      Ans   :  9699690

4)   2,3,6,7--- using these numbers form the possible four digit numbers that are divisible by 4.  Ans : ----8

5)   In an island there r tribals who speak lang of atmost 4 words.Lang consists of 4 alphabets.How many words can be formed in that language?   
      Ans  : 340

6)   An officer kept files on his table at various times in the order 1,2,3,4,5,6 .Typist can take file from top whenever she has time and type it.What order she cann't type.?
      Ans : 4,5,6,2,3,1

7)   There are 9 balls of this one is defective. Find the minimum no. of chances of finding the defective one.
      Ans  : 3times

8 )   40 shots taken.50p for a hit.10p for a miss.(he have to give).Finally he has Rs.5.How many hits.?
      Ans  : 15

9)  B is 50% faster than A.  If A starts at 9 A.M. and B starts at 10 A.M.  A travels at a speed of 50 km/hr.  If A and B are 300 kms apart, The time when they meet
     when they travel in opposite direction is                     
     Ans : 12 noon

10)  A batsman scores 23 runs and increases his average from 15 to 16. find the runs to be made if he wants top inc the avg to 18 in the same match.
       Ans:      39runs.

11)  A man sells apples. First he gives half of the total apples what he has and a half apple.
       Then he gives half of the remaining and a half apple. He gives it in the same manner. After 7 times all are over. How many apples did he initially have.
       Ans:     127 apples.

12)  In a club there are male and female members. If 15 female quit then the number of females will become double the number of males. If 45 males quit no. of female
       becomes five times the number of males. Find the number of females.
       Ans:     females:175,males:80

13) 4 weights r weighed in pairs. Weights of pairs are determined as 103,105,106,106,107,109 What is the min wt?
      Ans  : 51

14)  An apple seller is having some apples. He is selling half of the apple what he has plus half the apple to the first customer. In the same way he sells
       the remaining apple to 7 customers. After selling to 7 customer, he has no apples with him.
       Ans : 127
15)  In the combinations of 2,3,6,7 how many possible combinations divisible by 4?
       Ans :  8

16)  A batsman outs for 23 runs in one inning which increases his average 15 to 16. If he has to got 18 as average, what score is to made by him in the same innings?
       Ans   :  39

17) The ratio of white balls and black balls is 1:2. If 9 gray balls is added it becomes 2:4:3. Then what is number of black balls.      
      Ans :  12

18)  A,B,C,D,E,F,G,H,I are all of squares which are combined in a square. Area of B is 81 cm2.Side of A is 1 cm. Then find area of 'I'?
       Ans : 324 cm2.

19) Solid cube of 6 * 6 * 6. This cube is cut into to 216 small cubes.(1 * 1 * 1).the big cube is painted in all its faces. Then how many of cubes are painted at least 2 sides. 
      Ans : 56

20) A Bacteria is doubling at every 4 min. After 40 min 1024 bact. Then 256 when>.....? 
      Ans : 32 min

21) A bag contains 3 balls of 11 different colors each. Find the min no of chances to find at least 3 balls of same color?
      Ans  : 23

22) If x² < 4 then 100/x is....? 
      Ans : 100/x > 50 &  100/x < -50.

23)  You are  having 31kg of rice. You are provided with a 1kg stone for weighing. In how many weights the 31kg of rice can be weighed.
       Ans : 5

24) A work in 12 days b in 15 days. Find the no of days if they work on alternate days.
      Ans : 13 ¼

25) A,B,C r positive int.Out of them 2 r odd. Then 5²a   + ( b-5)3 (c-3)² = ? 
      Ans : always odd.