The weight of four boxes of biscuits is 36 ounces. How many ounces can nine boxes weigh?

1 Answer
Apr 2, 2018

Nine boxes of biscuits would weight 81 ounces.

Explanation:

Let x be the weight of nine boxes of biscuits in ounces.
4/36 = 9/x
By cross-multiplication:
4x = 36*9
4x = 324
x = 324/4
x = 81