Two-thirds of Jack’s sports cards are baseball cards. If he has 93 cards, how many are baseball cards?
A. 186 cards
B. 140 cards
C. 62 cards
D. 31 cards
If two-thirds of Jack’s cards are baseball cards, then one-third is made up of other sports cards.
We can set up a proportion:
baseball cards/total cards = 2/3
Let x be the number of baseball cards. Then we can write:
x/93 = 2/3
Cross-multiplying, we get:
3x = 186
x = 62
Therefore, the answer is C. Jack has 62 baseball cards.