Quantitative Aptitude - what is the probability that 4 numbers selected from 1 to 40 are not consecutive

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Quantitative Aptitude | Question 35 of 49

what is the probability that 4 numbers selected from 1 to 40 are not consecutive

Total Answers and Comments: 3

Last Update: June 09, 2009 Asked by: kumar_sarma2000

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Submitted by: rushi_gamer

from 1 to 40 there are 37 possible combinations of 4 consecutive numbers.....

we hav to choose 4 numbers from 1 to 40.....

so possible outcomes= 40C4...

thus, required outcome = 37/(40C4)= 1/2470

ANSWER= 1/2470

Above answer was rated as good by the following members:
tiru5796

June 20, 2007 04:59:32

bluenyt_09

RE: what is the probability that 4 numbers selected fr...

ans >3/4

the prob of 4 cosecutive nos r 10/40 1/4

the prob of not getting 4 consecutive no.s 1-1/4 3/4

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July 23, 2008 02:22:41

rushi_gamer

Member Since: July 2008 Contribution: 1

RE: what is the probability that 4 numbers selected from 1 to 40 are not consecutive

from 1 to 40 there are 37 possible combinations of 4 consecutive numbers.....

we hav to choose 4 numbers from 1 to 40.....

so possible outcomes 40C4...

thus required outcome 37/(40C4) 1/2470

ANSWER 1/2470

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1 0

Overall Rating: +1

June 09, 2009 06:10:50

tiru5796

Member Since: June 2009 Contribution: 4

RE: what is the probability that 4 numbers selected from 1 to 40 are not consecutive

Ans: (40-4+1)

C no. of combinations

4

Total no. of chances 37

Probability 37/37C4

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