The Kiwanis Club sold citrus fruit to raise money for their

The Kiwanis Club sold citrus fruit to raise money for their scholarship fund. A box of oranges costs $17 and a box of grapefruit costs $25. They sold 321 boxes of citrus for a total of $6337. How many boxes of grapefruit did they sell?

210

110

210

211

none of these

Solution

Suppose number of orange\'s box = x and number of grapefruit\'s box = y.

then total number of boxes: x + y = 321 ....(1)

and cost of boxes: 17x + 25y = 6337 ....(2)

solve equation (1) and (2):

we get: x = 211 and y = 110.

thus boxes of grapefruit = 110.