Question

5. There are boards numbered 1 to 50 in a box. One board is selected at random.
Find the probability that the number on the board is (1)a multiple of 11 (2) a
prime number (3) a multiple of 10.​

Answer 1

Answer:

(1) 1/4 (2) 1/15 (3) 1/5

Step-by-step explanation:

The answer of (1) is 1/4 because there are only 4 numbers that are divisible by 11 between 1 and 50.

The answer of (2) is 1/15 because there are only 15 prime numbers between 1 and 50.

Then answer of (3) is 1/5 as there are only 5 numbers that are divisible by 10 between 1 and 50

Hope it helps :)