what is the probability that 4 numbers selected from 1 to 40
are not consecutive.
- 4 Answers
- 6712 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / sudhanshu kumar
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 |
Post New Answer View All Answers
There are 4 numbers as 5,8,2,1 Form 4, four digit numbers as A, B and find the sum?
A man is running around a rectangle it takes time 2 time in travelling length than travelling width total perimeter = 300. Find area.
a cube has colors blue,red ,yellow each on two opposite sides.cube is divided into "32 small cubes and 4 large cubes". how many cubes (on 36 cubes) have blue at least one side. how many cubes have colors on two sides.
Four friends are given named Akansha, Anuska, Anisha, ... , ... Each of them live in a separate home and sleep on one bed. Akansha and Anuska have two extra beds, two of the house have green lawns while the rest have narrow porchs, One of the house has Airconditioner while the rest have fans
Total balls z,red balls N remaining are blak balls,then %of black balls equal to
f(X)-f(X-1)=f(X-8) FOR X>5 THEN X=
Successive discounts of 10%, 20% and 20% are equal to a single discount of __
hi had any body attended bank of interview plz........ share your experience
i want rrb tc exam previous pepers
low temperature at the night in a city is 1/3 more than 1/2 hinge as higher temperature in a day. sum of the low temp and higherst temp is 100C. then what is the low temperature
Find the correct meaning of the following phrase: Penny wise pound foolish
plz send Karur Vysya Bank Clerk exam previous model papers to saraphin21@gmail.com....
A tiffin box manufacturer reduces the price of his school kids' tiffin from Rs.30/- to Rs.28/- per tiffin and the price of regular tiffin from Rs.24/- to Rs.23/- per tiffin. A caterer normally spends Rs.1440/- a month for tiffin and 3/4 of this is for regular tiffin. How much will they save a month under the new prices?
The area of the quadrilateral is 36 What is a*b
a man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be?
