Question

18. There are 100 cards in a bag on which numbers from 1 to 100 are written. A card is taken out from the bag at random. Find
the probability that the number on the selected card
(i) A perfect square.
(ii)A two digit no.
(iii)No is a multiple of 5​

Answer 1

Step-by-step explanation:

Total cards =100.

The prime numbers greater than 80 are, 83,89,97

∴ probability that the number on the selected card is a prime number greater than 100 is

100

3

Sample space = {7,2,3...99,100} n(s) = 100 (i) Number divisible by 9 and perfect square are A = { 9,36,81} n(A) = 3 (ii) Prime numbers greater than 80 and less than 100 are B = {83,89,97} .. . n(B) = 3Read more on Sarthaks.com - https://www.sarthaks.com/177681/there-are-100-cards-bag-which-numbers-from-100-are-written-card-taken-out-from-the-bag-random