Question

a bag contains balls numbered 1 to 50. a ball is drawn at random from the bag, the probability that it bears a two digit numbered multiple of 7

Answer 1

Answer:

6/50

Step-by-step explanation:

the two-digit multiples of 7 under 50 are:

14, 21, 28, 35, 42, 49.

probability = 6/50

Answer 2

Answer:

3/25

Step-by-step explanation

The two digit numbers that are below 50 but divisible by 7 are as follows :

14, 21, 28, 35, 42, 49

We have six of them having this property.

Probability = number of events / total possible outcomes.

The total possible outcomes are 50.

The number of events = 6

Doing the substitution we have :

6/50

This gives the required probability.

We can simplify this fraction and write it in its simplest form.

6/50 ÷ 2/2 = 3/28

= 3/25