Question

Two digit numbers are formed with digits 2,3,5,7,9 without repetition. Complete the activity to find the probability that the number so formed is:
i. odd numbers
ii. multiples of 5
iii. even numbers
Ans: S = {______________ }
n(S) = {________}
Event A: the number formed is an odd number
A = {_________ } P(A) = {______}
Event B: the number formed is a multiple of 5
B = { __________} P(B) = {_________}
Event C: the number formed is an even number C = {____________} P(C) ={______}
​

Answer 1

Step-by-step explanation:

i. odd multiple

ii. multiple of 5

iii. even numbers

Answer 2

ANSWER:

Digits are {22,23,25,27,29,32,33,35,37,39,52,53,55,57,59,72,73,75,77,79,92,93,95,97,99}

∴Total digits are 25

Odd numbers are 20

∴ probability that an odd number is formed is

25

20

=

5

4

a multiple of 5

Numbers which are multiple of 5 are

{25,35,55,75,95}

∴ probability of multiple of 5 is

25

5

=

5

1