2 cups of low fat yogurt and 3 bananas contain a total of 650 calories. 4 cups of low fat yogurt and 2 bananas contain a total of 900 calories. How many calories does a cup of low fat yogurt contain?

A.
100

B.
175

C.
225

D.
325

B. 175

Let x be the number of calories in a cup of low fat yogurt and y be the number of calories in a banana.

From the given information, we can set up the following system of equations:

2x + 3y = 650
4x + 2y = 900

Solving this system of equations, we get x = 175.

Therefore, a cup of low fat yogurt contains 175 calories.