A bag contains 8 white, 4 red, 7 green, and 5 blue marbles. Eight marbels are withdrawn randomly. How many withdrawn marbles were white if the chance of withdrawing a white marble is now 1/4?

We are starting with 8+4+7+5=24 marbles. We're taking out 8, so we'll be left with 24-8=16 marbles. Think about those 16. If the probability of drawing a white one is 1 in 4, that means that 1/4 of the marbles are white. 1/4 of 16 is 16/4 = 4 marbles are white. Since we started with 8 white, and there are 4 left, we must have taken out 8-4 = 4 white marbles.

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mahimapanday53 mahimapanday53 · Answer 2 · 2022-07-15T20:41:56+02:00

Answer:

4 white marbles were drawn

Step-by-step explanation:

This question can be understood by the concept of probability.

Total number of marbles= 8+4+7+5 = 24

After drawing 8 marbles Randomly, no of marbles Left = 24-8 = 16

Probability of Drawing a white marble now = 1/4

So, the number of white marbles now is 16*1/4 = 4

Initial number of white marbles was 8

number of white marbles withdrawn = 8-4 = 4

Thus, the number of white marbles withdrawn is 4

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