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(#M40001601) TCS QUESTION latest question Keep an EYE

A circular dartboard of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery?
a)0.75 b)1 c)0.5, d)0.25

Solution

Since according to requirement we have to locate Q closer to center in comparison to the circumference, for doing this we shall make a circle in that board whose radius will be half of the radius of dartboard.now we will compare the area of inner circle to the total area
Answer of DIPIN is correct
area of whole circle = pi*(1 foot)^2 = pi (this is according to formula area = pi*(radius)^2
similarly area of inner circle = pi*(1/2foot)^2 = pi/4
so ratio of areas of these two circles will be the probability and that is 1/4


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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001600) TCS QUESTION latest question Keep an EYE

The IT giant Tirnop has recently crossed a head count of 150000 and earnings of $7 billion. As one of the forerunners in the technology front, Tirnop continues to lead the way in products and services in India. At Tirnop, all programmers are equal in every respect. They receive identical salaries ans also write code at the same rate.Suppose 12 such programmers take 12 minutes to write 12 lines of code in total. How long will it take 72 programmers to write 72 lines of code in total?
a) 6 b) 18 c) 72 d) 12

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001599) TCS QUESTION latest Keep an EYE

A sheet of paper has statements numbered from 1 to 40. For all values of n from 1 to 40, statement n says: 'Exactly n of the statements on this sheet are false.' Which statements are true and which are false?
a) The even numbered statements are true and the odd numbered statements are false.
b) The odd numbered statements are true and the even numbered statements are false.
c) All the statements are false.
d) The 39th statement is true and the rest are false.

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001598) TCS QUESTION latest question Keep an EYE

A sheet of paper has statements numbered from 1 to 70. For all values of n from 1 to 70. Statement n says ' At least n of the statements on this sheet are false. ' Which statements are true and which are false?
a) The even numbered statements are true and the odd numbered are false.
b) The odd numbered statements are true and the even numbered are false.
c) The first 35 statements are true and the last 35 are false.
d) The first 35 statements are false and the last 35 are false.

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001596) TCS QUESTION latest question Keep an EYE

how many 8 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if repetition of digits is allowed?

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001595) TCS QUESTION latest puzzle Keep an EYE

Middle- earth is a fictional land inhabited by hobbits, elves, dwarves and men. The hobbits and elves are peaceful creatures that prefer slow, silent lives and appreciate nature and art. The dwarves and the men engage in physical games. The game is as follows. A tournament is one where out of the two teams that play a match, the one that loses get eliminated. The matches are played in different rounds, where in every round; half of the teams get eliminated from the tournament. If there are 8 rounds played in knock out tournament, how many matches were played?
a) 257 b) 256 c) 72 d) 255

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001594) TCS QUESTION latest Keep an EYE

A lady has fine gloves and hats in her closet- 18 blue, 32 red, and 25 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color?
a) 50 b) 8 c) 60 d) 42

Solution

It is not given that how many of these items are gloves and how many are hats, if we consider that all the items are gloves then according to my opinion 32+25+2 = 59 gloves, she must take out to make sure she has a pair of each color. But closest option is 60 so it will be the answer

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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001590) TCS QUESTION latest question Keep an EYE

When my uncle died, he left a will instructing his executers to divide his estate of 19,80,000 in this manner.Every son should receive 3 times as much as a daughter and that evry daughter should get twice as much as their mother. what is my aunt's maximum share if my uncle has atleast one son and one daughter?
(a) 19,80000 (b) 9,90,000 (c) 3,30,000 (d) 2,20,000 (e) 1,98,00

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001589) TCS QUESTION latest question Keep an EYE

Shreya writes 1st 100 whole num. let A and B be the num of times she writes 0 and 9 respectively, find the value of A+B

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001583) TCS QUESTION latest puzzle Keep an EYE

If there are 30 cans out of them one is poisened if a person tastes very little he will die within 14 hours so if there are mice to test and 24 hours to test, how many mices are required to find the poisened can?
A) 3 B) 2 C) 6 D) 1

Solution

1 mouse is sufficient to get the result...
At 1st min the mouse tastes 1st can & dies at 14hr 1 min.
After 15 mins the mouse tastes 2nd can & dies at 14hr.15 Min
After 30 mins the mouse tastes 3rd can & dies at 24 hr 30 mins.
.
.
After 7 hrs the mice tastes 29th can & dies after 21 hrs
If the mice is till alive after 21 hrs, then the poison will be in the 30th Can....
this answer is given by DIPIN and is correct answer

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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001580) TCS QUESTION latest puzzle Keep an EYE

Ferrari S.P.A is an Italian sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1928 as Scuderia Ferrari, the company sponsored drivers and manufactured race cars before moving into production of street-legal vehicles in 1947 as Ferrari S.P.A. Throughout its history, the company has been noted for its continued participation in racing, especially in Formula One where it has employed great success .Rohit once bought a Ferrari. It could go 4 times as fast as Mohan's old Mercedes. If the speed of Mohan's Mercedes is 35 km/hr and the distance traveled by the Ferrari is 490 km, find the total time taken for Rohit to drive that distance.
a) 20.72 b) 3.5 c) 238.25 d) 6.18

Solution

time=490/(35*4)=3.5 hr.
This answer is given by SOUMITRA SARKAR and is correct


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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001579) TCS QUESTION latest puzzle Keep an EYE

On planet korba, a solar blast has melted the ice caps on its equator. 9 years after the ice melts, tiny planetoids called echina start growing on the rocks. Echina grows in the form of circle, and the relationship between the diameter of this circle and the age of echina is given by the formula d = 4*[sqrt(t-9)] for t>9, where d represents the diameter in mm and t the number of years since the solar blast. Jagan recorded the radius of some echina at a particular spot as 7mm. How many years back did the solar blast occur?
a) 17 b) 21.25 c) 12.25 d) 14.05

Solution

Answer: (b) 21.25.
Explanation:
radius=7mm.
So dia= 14mm.
putting D=14 in equation we can easily calculate
t=21.25
This answer is given by ANIRBAN and is correct answer


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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001573) TCS QUESTION latest question Keep an EYE

There are two pipes A and B. If A filled 10 liters in an hour, B can fill 20 liters in same time. Likewise B can fill 10, 20, 40, 80, 160. If B filled 1/16 of a tank in 3 hours, how much time will it take to fill the tank completely?
a) 9 B) 8 c) 7 d) 6

Solution

As per the ques B is doubling its rate every hr so if 1/16th on 3 hrs
on 4th 1/8th
on 5th 1/4th
on 6th 1/2 and
on 7th hr B will fill it
This answer is given by VAMSI KRISHNA REDDY and is correct answer

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(#M40001566) TCS QUESTION latest Keep an EYE

A lady has fine gloves and hats in her closet- 18 blue- 32 red and 25 yellow. The lights are out and it is totally dark inspite of the darkness. She can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each colour?
a) 50
b) 8
c) 60
d) 42

Solution

It is not given that how many of these items are gloves and how many are hats, if we consider that all the items are gloves then according to my opinion 32+25+2 = 59 gloves, she must take out to make sure she has a pair of each color. But closest option is 60 so it will be the answer

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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001560) TCS QUESTION latest question Keep an EYE

A sheet of paper has statements numbered from 1 to 70. For all values of n from 1 to 70. Statement n says ' At least n of the statements on this sheet are false. ' Which statements are true and which are false?
a) The even numbered statements are true and the odd numbered are false.
b) The odd numbered statements are true and the even numbered are false.
c) The first 35 statements are true and the last 35 are false.
d) The first 35 statements are false and the last 35 are false.

Asked In TCS Aditi Sharma (14 years ago)

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(#M40001557) TCS QUESTION latest question Keep an EYE

On planet korba, a solar blast has melted the ice caps on its equator. 9 years after the ice melts, tiny planetoids called echina start growing on the rocks. Echina grows in the form of circle, and the relationship between the diameter of this circle and the age of echina is given by the formula d = 4*[sqrt(t-9)] for t>9, where d represents the diameter in mm and t the number of years since the solar blast. Jagan recorded the radius of some echina at a particular spot as 7mm. How many years back did the solar blast occur?
a) 17 b) 21.25 c) 12.25 d) 14.05

Solution

Answer: (b) 21.25.
Explanation:
radius=7mm.
So dia= 14mm.
putting D=14 in equation we can easily calculate
t=21.25
This answer is given by ANIRBAN and is correct answer


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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001554) TCS QUESTION latest question 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?

a) 1 in 16
b) 1 in 125
c) 1 in 32
d) 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


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Asked In TCS Aditi Sharma (14 years ago)

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(#M40001552) TCS QUESTION latest question Keep an EYE

) Six friends decide to share a big cake. Since all of them like the cake, they begin quarreling who gets to first cut and have a piece of the cake. One friend suggests that they have a blindfold friend choose from well shuffled set of cards numbered one to six. You check and find that this method works as it should simulate a fair throw of a die. You check by performing multiple simultaneous trials of picking the cards blindfold and throwing a die. You note that the number shown by the method of picking up a card and throwing a real world die, sums to a number between 2 and 12. Which total would be likely to appear more often 8,9 or 10?
a) 8
b) All are equally likely
c) 9
d) 10

Solution

the best solution will be 7, and there will be total 6 cases for this choice (1,6), (2,5), (3,4), (4,3), (5,2), (6,1)
but this one is not in the choices so out of the 4 choices givem 8 will be the best choice. For this choice there are 5 methods (2,6), (3,5), (4,4), (5,3), (6,2)
similarly for 9 there are 4 choices (3,6), (4,5), (5,4), (6,3)
for 10 there are 3 choices (4,6), (5,5), (4,6)
Answer is (a)


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(#M40001547) TCS QUESTION latest question Keep an EYE

A scientist was researching on animal behavior in his lab. He was very interested in analyzing the behavior of bear. For some reason he travelled 1 mile in north direction & reached at North Pole. There he saw a bear. He then followed the bear around 1 hr with a speed of 2km/hr in east direction. After that he travelled in south direction & reached at his lab in 2 hrs. Then what is the color of the bear?

Solution

Generally polar bears r white colored so the color of north pole bear will be the white color
This answer is given by RAVALIKA and is correct answer

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(#M40001546) TCS QUESTION latest question Keep an EYE

A lady has fine gloves and hats in her closet- 18 blue, 32 red, and 25 yellow. The lights are out and it is totally dark. In spite of darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that it is a glove. How many gloves must she take out to make sure she has a pair of each color?

Asked In TCS Aditi Sharma (14 years ago)

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