Sam buys 3 different types of fruit in 3/4 pound baskets. Maria has 1 1/4 pounds fruit.

How many pounds of fruit do they have altogether?
a 3 2/4 pounds
b 2 1/4 pounds
c 2 pounds
d 1 6/8 pounds

Sam buys 3/4 pound baskets of fruit, so he has a total of 3 * 3/4 = 9/4 pounds of fruit.

Maria has 1 1/4 pounds of fruit, which is equivalent to 5/4 pounds of fruit.
Altogether, they have 9/4 + 5/4 = 14/4 = 3 1/2 pounds of fruit.
Therefore, the answer is a) 3 2/4 pounds.