Question

Nicole has the cards shown below. All cards are the same size and shape. She put the cards into a bag. Nicole will pull one card out of the bag without looking.

Nicole will perform this experiment a total of 96 times, replacing the card after each pull. What is the total number of times she should expect to pull out a card with an odd number on it?


A.
24 times

B.
32 times

C.
48 times

D.
64 times

Answer 1

Using a Ratio to solve

If we have a ratio of 7/12 odd cards to total cards she can expect to pull out 7 odds in her 12 cards. Now we will use this ratio out of 96 cards. If we have 96 cards with a 7/12 ratio we will divide 96 by 12 which is 8. Now we use our 8 and will multiply it by 7 which is our odd cards. Our total number of odds pulled out of 96 cards will be 56 out of 96.

Answer 2

D because 2/3 of the cards are odd and 64 is 2/3 of 94