Question

A Bag contains 25 balls, inscribing number 1 to 25. One ball being taken out of the bag. What is the probability tha
the ball is numbered the multiple of 5 or 7?​

Answer 1

Answer:

Total number = 30

(A) Probability of the number being multiple of 3 is

P (3, 6, 9, 12, 15, 18, 21, 24, 27,30) =

30

10

=

3

1

(B) Probability of the number being multiple of 5 is P(5, 10, 15, 20, 25, 30) =

30

6

=

5

1

=0.2

(C) Probability of the number being multiple of 7 is P (7,14, 21,28)=

30

4

=

15

1

(D) Probability of the number being multiple of 3 and 5 is P(15,30) =

30

2

=

15/1

Answer 2

Answer:

multiple of 5= 5

Explanation:

multiple of 7=3