Question

3.
There are 4 blue coins, 6 red coins and 5 yellow coins in a bag. A coin is drawn from the
bag without looking into it. What is the probability that it is a yellow one? If one more
coin of yellow colour is added, what will be the probability of drawing a yellow coin?

Answer 1

Answer:

1 , 6

3 16

Step-by-step explanation:

total No of coins

4 + 6 + 5 = 15

no of yellow coin = 5

probability of picking yellow coin = no of yellow coins

. Total No of coins

= 5

. 15

= 1

. 3

If one yellow coin is added then

Now,

No of yellow coins = 5 + 1 = 6

Total No. of coins = 15 + 1 = 16

Now the probability of picking yellow coin = No of yellow coins now

. Total No. of coins now

= 6

. 16

So, the answer is 1 , 6

. 3 16

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