Question

Choose the correct answer.
Q14/16
A recipe for cake needs 2 1/2 cups of sugar for 8
pieces. How many cups of sugar are needed for 10
pieces of cake?
3.125
2.125

3.33
2.75
OPTIONS

Answer 1

the right answer is 3.125

hope this helps you.

Answer 2

Given:

Number of cups of sugar = 2 $\frac{1}{2}$ cups

Number of pieces of cake = 8 pieces

To find:

The number of cups of sugar for 10 pieces of cake =?

Solution:

The number of cups of sugar needed to bake 10 pieces of cake can be calculated as follows:

Let "X" be the number of sugar cups for 10 pieces of cake.

=> If 2 $\frac{1}{2}$ cups sugar = 8 pieces of cake

=> X cups of sugar = 10 pieces of cake

=> Using the rules of cross multiplication:

=> X cups of sugar = (2 $\frac{1}{2}$ cups sugar × 10 pieces of cake) ÷ 8 pieces of cake

=> X cups of sugar = $\frac{2.5 * 10}{8}$

=> X cups of sugar = $\frac{25}{8}$

=> X cups of sugar = 3.125 cups

Hence, 3.125 cups of sugar (option 1st) are needed to bake 10 pieces of cake.