• Placement Questions

Frequently Asked Interview Questions and Answers

(#M40002795) TCS QUESTION tcs Keep an EYE

((4x+3y)+(5x+9y))/(5x+5y) = ? as (x/2y) = 2
Ans: as x=2y put the value and get the answer.

Solution

((4x+3y)+(5x+9y))/(5x+5y) = (9x+12y)/(5x+5y)
given that x = 4y
so (9x+12y)/(5x+5y)= 48y/25y =48/25

Like manish sir answer on facebook.

Asked In TCS purvi (14 years ago)

Solved Read Solution (1)

Is this Puzzle helpful?   (10)   (3) Submit Your Solution

(#M40002663) TCS QUESTION tcs Keep an EYE

Alok is attending a workshop ‘How to do more with less’ and today’s theme is working with fewer digits. The speakers discuss how a lot of miraculous mathematics can be achieved if mankind (as we as womankind) had only worked with fewer digits. The problem posed at the end of the workshop is ‘How many 6 digit numbers can be formed using the digits 1,2,3,4,5, (but with repetition) that are divisible by 4?’ Can you help Alok find the answer?
(a) 3906
(b) 3907
(c) 3125
(d) 1250

Asked In TCS purvi (14 years ago)

Solved tejesh singh Read Solution (2)

Is this Puzzle helpful?   (6)   (1) Submit Your Solution

(#M40002691) TCS QUESTION tcs Keep an EYE

By using 1,2,3,4,5,how many 5 digit no. can be formed which is divisible by 4,repetation of no. is allowed??

Solution

for first 3 places we have 5*5*5=125 combinations
next 2 possibilities are 12,24,32,44,52
so 125*5=625 numbers
This answer is given by SANDEEP REDDY M and is correct answer

Like manish sir answer on facebook.

Asked In TCS purvi (14 years ago)

Solved Read Solution (3)

Is this Puzzle helpful?   (10)   (17) Submit Your Solution Permutation and Combination

(#M40002671) TCS QUESTION tcs Keep an EYE

. Elephant competitions are of great entertainment value in south India. In one such competition held in Cochin, 200 elephants participated. Each elephants was given equal amount of milk to drink for a certain time period. Whichever elephant could drink the maximum would be the winner. One of the elephants named Garru could drink 1/3 of the amount of milk offered. Another elephant named Marta could drink only 1/20 of the amount of milk offered, but it was better than Thorny which could drink 2/45 of the amount of milk offered. Amazingly Darru could drink 6 litres more than 1/4 of the amount of milk offered, where as Malar could drink 2/15 of the amount of milk offered. If the amount of milk left over by the elephants Garru and Darru were same, then calculate the total amount of milk offered to each elephant.

Asked In TCS purvi (14 years ago)

Solved Akash Sharma Read Solution (1)

Is this Puzzle helpful?   (7)   (3) Submit Your Solution

(#M40002816) TCS QUESTION tcs Keep an EYE

A car manufacturer produces only red and blue models which come out of the final testing area completely at random. What are the odds that 5 consecutive cars of the same color will come through the test area at any one time?
i) 1 in 16
ii) 1 in 125
iii) 1 in 32
iv) 1 in 25

Solution

The probability for the question will be 1/16 and answer of AMAR
First car can come out with any colour with prob 1.
second car will come out with probability of same color as 1/2.
third car will come out with probability of same color as 1/2.
4th car will come out with probability of same color as 1/2.
5th car will come out with probability of same color as 1/2.

so probability is 1*1/2* 1/2* 1/2 *1/2=1/16
is right but question is saying about odds and odds mean favorable probability/non favorable probability = (1/16)/(15/16) = 1/15
odds has two category 1) in favour 2) against
odds in favour = favorable probability/non favorable probability
odds against = non favorable probability/ favorable probability


Like manish sir answer on facebook.

Asked In TCS purvi (14 years ago)

Solved Amarendra Pratap Singh Read Solution (2)

Is this Puzzle helpful?   (4)   (0) Submit Your Solution

(#M40002865) TCS QUESTION tcs Keep an EYE

A cyclist buys a cycle for 29 pounds paying with a 50 pound cheque. The seller changes the cheque next door and gives the cyclist change. The cheque bounces so the seller paid his neighbour back. The cycle cost the seller 12 pounds. How much did the seller lose?

Asked In TCS purvi (14 years ago)

Unsolved Read Solution (5)

Is this Puzzle helpful?   (12)   (1) Submit Your Solution

(#M40002861) TCS QUESTION tcs Keep an EYE

Q1. Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line
while the others lie on the other side.
The number of 1-sets of P is denoted by n1(P). The minimum value of n1(P) over all configurations P of 5 points in the plane in general position (.i.e no
three points in P lie on a line) is
a)3 b)5 c) 2 d)1

Asked In TCS purvi (14 years ago)

Solved nitesh Read Solution (1)

Is this Puzzle helpful?   (10)   (3) Submit Your Solution

(#M40002901) TCS QUESTION Keep an EYE

how many 1s are present between 1 to 1000?

Asked In TCS purvi (14 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (7)   (4) Submit Your Solution

(#M40002675) TCS QUESTION tcs Keep an EYE

Pizza parlor provides pizzas there were 2 toppings available initially peperomi and salami but now they introduces 7 new item(some time waste data). One person wishes to buy two different pizzas from the new items. How many ways he can do that?

Asked In TCS purvi (14 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (3)   (1) Submit Your Solution

(#M40002680) TCS QUESTION tcs Keep an EYE

aAn athlete decides to run the same distance in 1/4th less time that she usually took. by how much percent will she have to increase her average speed?
a)40 b)44.4 c)33.3 d)22.2

Asked In TCS purvi (14 years ago)

Solved neha verma Read Solution (1)

Is this Puzzle helpful?   (6)   (3) Submit Your Solution