• Placement Questions

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(#M40023856) CAT QUESTION Keep an EYE

A plane is divided into 79 regions by several number of straight lines. How many number of lines is required atleast for this division?

Asked In CAT Divya Srivastava (12 years ago)

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(#M40023723) TCS QUESTION Keep an EYE

what are the number of solutions for x+y+z=12, if x,y & z can take values from 1 to 7 ?

Asked In TCS Divya Srivastava (12 years ago)

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(#M40023861) TCS QUESTION Keep an EYE

What is the sum of 28 terms of the series,
(k^2)*(28Ck),
where (28Ck) is the number of ways of choosing k items from 28 items?

Asked In TCS Divya Srivastava (12 years ago)

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(#M40023801) TCS QUESTION Keep an EYE

What is the next number of the following sequence
2,7,24,77,_
a) 124
b) 165
c) 215
d) 240

Asked In TCS Divya Srivastava (12 years ago)

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(#M40029067) CAT QUESTION Keep an EYE

In a cube, one pair of opposite faces is painted in Red, the second pair of opposite faces is painted Greeen and the third pair is in Blue. This cube is now cut into 729 smaller but identical cubes.
(i) How many small cubes are there with at least two different colors on their faces??
(Ans. 92)
(ii). How many small cubes are there with exactly one face painted red???
(Ans. 98)

please explain in detail.

Asked In CAT Divya Srivastava (12 years ago)

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(#M40024372) SELF QUESTION Keep an EYE

What is the sum of 2320th term of the series 1,2,3,4,1,1,2,2,3,3,4,4,.........??

Divya Srivastava (12 years ago)

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(#M40023862) TCS QUESTION Keep an EYE

What is the sum of 28 terms in the following expressions :
(3^k)*(28Ck),
where (28Ck) is the number of ways of choosing k items from 28 items?
a) 2^56
b) 3*(2^27)
c) 3^29
d) 3*(4^27)

Asked In TCS Divya Srivastava (12 years ago)

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(#M40023800) TCS QUESTION Keep an EYE

The no. of bacteria was rising exponentially. At 3pm it is 1000, at 5 pm it is 4000, then how many r there at 8 pm???

Asked In TCS Divya Srivastava (12 years ago)

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(#M40023799) TCS QUESTION Keep an EYE

5000 voted in an election between two candidates. If 14% vote were invalid & Candidate A won by margin approximately close to 14%, what are the number of votes secured by A..???

Asked In TCS Divya Srivastava (12 years ago)

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(#M40023776) SELF QUESTION Keep an EYE

Find the sum of first 52 terms of the following series:
1,6,7,13,20 ........

Divya Srivastava (12 years ago)

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