Question

A bag contains 20 yellow balls, 23 green balls, 27 white balls. how many minimum balls one should pick out so that to make sure he gets at least 2 balls of all color?

Answer 1

three colours are there so he should take two balls of each colours which is equal to 6...
And that's the minimum number of balls to be picked...
Hope it helps you

Answer 2

Thank you for asking this question:

Here is your answer:

We know that there are three colors

YELLOW

GREEN

WHITE

In my opinion the person should take at least 2 balls of each color in order to get the accurate results

6(3x2 = 6)

So the minimum number would be 6

If there is any confusion please leave a comment below.