if pragmatic,can someone tell me the derangement
concept??
5 ordinary dice are rolled at random and the sum of the numbers shown on them is 16...what is the probability that the numbers shown on each is any one from 2,3,4,or 5?
- 10/49
- 9/49
0 voters
wat are the no. of ways in which 26 objects can be divided between 5 men x1, x2, x3, x4 and x5 such that objects with x1>x2>x3>x4>x5.
Please reply asap..
in a regular polygon of 15 sides . how many tringles can be made from the 15 vertices, such tht none of the side of the triangle are taken from sides of the polygon
Can anyone clear the doubt regarding these 4 scenarios ?
a. Distribution of different objects to different things
b. Distribution of different objects to identical things
c. Distribution of identical objects to different things
d. Distribution of identical objects to identical things
Such kind of scenarios are always confusing and take up a huge amount of time while solving.
An exam has 4 sections, each with max of 45 marks. In how many ways can a student attempt to pass the exam? (passing marks is 90)
Could someone please explain this extremely easy question to me.
A bag contains 9 yellow balls, 3 white balls and 4 red balls. In how many ways can 2 balls be drawn from the bag?
Options:
A) 12C4
B) 3C2
C) 16C2
D) 12C2
Thanks
There are 5 Pairs of Hand gloves, each pair with different color, In how many ways they can be paired so that the Right and left do not have same colors.
I am really weak at CAT Style difficult questions of P&C. Any resources like a TG Book or any other resource where I could practice and learn from it to get my confidence up?
In how many ways can we select 2 numbers from a set of 2 digit number with 2 different digits such that they have one digit in common?
How many circles can be determined out of 12 points, if 8 out of these 12 are collinear? pls explain with sol.
A basket of fruits is being arranged out of apple,bananas, and orange .What is the smallest number of pieces of fruit that should be put in the basket in order to guarantee that either there are at least 8 apple or at least 6 bananas or least 9 orange? a)21 b)20 c)23 d)22
- 22
- 21
- 20
- 23
0 voters
Ravi tell his customers that he is selling rice of price Rs 12 per kg after discount at Rs 10 per kg.Actually Ravi mixes a lower quality rice of price Rs 6 per kg in some proportion and thus making a profit of 20%.What is the proportion in which the good quality and low quality rice are mixed and sold to customer? approach please
P and Q are playing a game in which they toss a biased coin alternately. The probability that the coin shows a head is 0.2. The game continues until the coin shows head and the person on whose turn a head shows wins the game. Find the probability that P wins the game. (Assume that Q tosses the coin first). approach please!
How many ways can the letters of the word VARIETY Be arranged so that exactly two vowels are together?
1) IxI+IyI+IzI=15- Total no. of integral solutions?
2) xyz=10^6- Total no. of natural no. solutions?
Can someone explain the approach to such questions please?
Five balls of different colors are to be placed in three different boxes such that each box gets at least 1 ball. What is maximum number of ways in which this can be done ?
ans 150 or 180
Arun Sharma Worked out example he has given it has 150 .. shouldn't it be 180 ?!!
Can anyone share all the basic formulas needed for P&C?
And few basic examples and Few specific repeated difficult questions.?
It will be helpful. Thanks. 😃
Total number of three friends with moti, sumit and manky put together is 10.If the sum of a reciprocal of a number of bananas with the three friends is 1.What is the difference between the number of bananas with moti and sumit?
- 3
- none of these
- 0
- 2
0 voters
In how many ways can 14 Identical toys distributed among 3 boys so that each boy gets at least one toy and no two boy get the same number of toys?
- 60
- 78
- 120
- 24
0 voters