Question

a box contains 60 pens which are blue in penis big at random the probability of picking a blue ink pen is 2 by 5 what is the number of blue ink pens in the box​

Answer 1

Answer:

24

Step-by-step explanation:

number of blue pen in the box=2/3

number of other pen in the box=3/5

number of blue pen =2/5x60

=2x12

=24

Answer 2

Given,

Total pen = 60 pens

The probability of picking a blue ink pen = 2 / 5

To Find,

The number of Blue ink pens in the box =?

Solution,

Let the number of Blue ink pens be x

Total number of pens in the box = 24

We know that Probability  = Favourable outcomes / Total outcomes

Probability of  picking a blue ink pen  = Number of blue pens / Total pens

Number of blue pens / Total pens = 2 / 5

x / 60 = 2 / 5

Multiplying 60 on both sides

x * 60 / 60 = 2 * 60 / 5

x = 2 * 12

x = 24 pens

Hence, the number of blue ink pens in the box​ is 24.