Question

a box contains 6 blue pens , 8 black pens and 3 red pens .what is the probability that he will not pick the blue pen​

Answer 1

Answer:

Given,

There are a total of 6 blue pens, 8 black pens and 3 red pens.

We need to find the probability of NOT picking a blue pen

Converting into Fraction

For the denominator, we need the total. So,

6 + 8 + 3 = 17

Blue pens = 6/17

Black pens = 8/17

Red pens = 3/17

Finding Probability (In Fractions)

We need to know the total number of pens which aren't blue. There 8 black pens and 3 red pens. So,

8/17 + 3/17 = 8 + 3/17

= 11/17

So, 11/17 times he takes a pen, it will NOT be blue

If you even want the probability of getting a blue pen, then scroll down

Probability of getting blue pen = Total - Probability of getting non - blue pens

= 17/17 - 11/17 = 17 - 11 /17

= 6/17

So, 6/17 times he takes a pen, it will be blue