Correct option is A
Given:
Total students present = 30
Formula Used:
Total Handshakes =
Solution:
Total Handshakes =
= 435
In a reunion of class XII, out of 45 students, 30 students participated in the function. If all present in the function shake hands with one other, find the total number of handshakes.
Given:
Total students present = 30
Formula Used:
Total Handshakes =
Solution:
Total Handshakes =
= 435
If four whole numbers are chosen at random and multiplied together, what is the chance that the last digit in the product is 1,3,7 or 9 ?
In an examination, a question paper consists of 12 questions divided into two parts i.e., Part I and Part II, containing 5 and 7 questions, respectively. A student is required to attempt 8 questions in all, selecting atleast 3 from each part. In how many ways can a student select the questions?
A five digit number is formed with the digits 8, 3, 4, 5 and 6 without repetition. Find the probability that the number is divisible by 5.
From a group of 37 men and 13 women, 3 persons are selected at random. Find the probability that out of the selected three persons, two are women and one is man.
(Approximately in %)
Four unbiased coins are tossed. What is the probability of getting exactly four heads?
In a leap year, the probability of getting 53 Sundays is-
There are 5 balls in a bag; in which 4 are blue and 1 is red. What is the probability that a blue ball gets picked?
A fair coin is tossed two times independently and X denotes the number of heads. Then a fair 6-faced die is thrown at random (independently of the tosses) and Y denotes the number on the top of the die. What is the probability that the value of X + Y is 4?
The probability that a ticketless traveller is caught during a rip is 0.1. If the traveller makes 4 trips, the probability that he/she will be caught during at least one of the trips is:
Suggested Test Series
Suggested Test Series
If four whole numbers are chosen at random and multiplied together, what is the chance that the last digit in the product is 1,3,7 or 9 ?
In an examination, a question paper consists of 12 questions divided into two parts i.e., Part I and Part II, containing 5 and 7 questions, respectively. A student is required to attempt 8 questions in all, selecting atleast 3 from each part. In how many ways can a student select the questions?
A five digit number is formed with the digits 8, 3, 4, 5 and 6 without repetition. Find the probability that the number is divisible by 5.
From a group of 37 men and 13 women, 3 persons are selected at random. Find the probability that out of the selected three persons, two are women and one is man.
(Approximately in %)
Four unbiased coins are tossed. What is the probability of getting exactly four heads?
In a leap year, the probability of getting 53 Sundays is-
There are 5 balls in a bag; in which 4 are blue and 1 is red. What is the probability that a blue ball gets picked?
A fair coin is tossed two times independently and X denotes the number of heads. Then a fair 6-faced die is thrown at random (independently of the tosses) and Y denotes the number on the top of the die. What is the probability that the value of X + Y is 4?
The probability that a ticketless traveller is caught during a rip is 0.1. If the traveller makes 4 trips, the probability that he/she will be caught during at least one of the trips is: