what is the probability that 4 numbers selected from 1 to 40
are not consecutive.
Answers were Sorted based on User's Feedback
Answer / sandy
Number of Combinations of 4 consecutive numbers is 37 (it
makes no diff. whether the combination is in stright order
or reverse its still the same combination and ought not be
counted twice)
and out of the total combinations possible i.e 91390 the
probability would be 37/91390 = 0.000405
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / sudhanshu_kmr
there may be 74 group of consecutive numbers...
1,2,3,4
2,3,4,5
.....
.....
37,38,39,40
and their reverse as
4,3,2,1
5,4,3,2
.....
....
40,39,38,37
total no. of ways to arrange 4 numbers out of 40 = 40 P 4
probability= 1- 12*37 / 40*39*38*37
= 29639 /29640
Is This Answer Correct ? | 3 Yes | 1 No |
there may be 74 group of consecutive numbers...
1,2,3,4
2,3,4,5
.....
.....
37,38,39,40
and their reverse as
4,3,2,1
5,4,3,2
.....
....
40,39,38,37
total no. of ways to arrange 4 numbers out of 40 = 40 P 4
probability= 1 - ( 2*37 / 40*39*38*37 )
= 29639 /29640
Is This Answer Correct ? | 1 Yes | 1 No |
Need Questions Related To Quants
instead of multiplying by 7 to a number dividing by 7 what is the percentage of error
Tell us about ur self?
5 Answers Chevron, IOCL, Kuwait University,
Can there be a line which can cut all the four quadrants?
If he sells 40 mangoes, he will get the selling price of 4 mangoes extra, What is his percentage increase in profit ?
9 Answers Infotech, L&T, Lucent,
Find the ratio of the areas of the regular hexagons inscribed in and circumscribed around a circle of radius 10cm.
Plz mail me some aptitute questions which helps me to face SBI clerical exam. plz send at ahmed31138@gmail.com
0 Answers State Bank Of India SBI,
Tell me something About Yourself..? In this Ques. How will I start and where I have to End..
In a two-dimensional array, X (9, 7), with each element occupying 4 bytes of memory, with the address of the first element X (1, 1) is 3000, find the address of X (8, 5).
What is the difference between a seed cotyledon and a seed endorsperm?
Animesh and Anand together got a profit of Rs. 9,600 and they distributed between themselves in the ratio of 5 : 7. What is the share of Animesh? (a) Rs. 4,000 (b) Rs. 5,600 (c) Rs. 4,800 (d) Rs. 5,200 (e) None of these
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)8