Question

A recipe for making 18 cookies requires 3/4 cup of sugar. How much sugar would be needed to make two dozen cookies using the
same recipe?​

Answer 1

Given:

Sugar for 18 cookies=3/4 cup

To find:

Amount of sugar needed to make two dozen cookies

Solution:

The amount of sugar needed to make two dozen cookies is 1 cup.

We can find the amount by following the given steps-

We know that one dozen cookies are equal to 12 cookies.

So, two dozed cookies=2×12

=24 cookies

The amount of sugar required for making 18 cookies=3/4th of a cup

=0.75 cups

We will now use the unitary method to calculate the amount of sugar required for 24 cookies.

The amount of sugar required for 1 cookie=0.75/18

So, the amount of sugar required for 24 cookies=amount of sugar required for 1 cookie×24

=0.75/18×24

=(0.75/3)×4

=0.25×4

=1 cup

Therefore, the amount of sugar needed to make two dozen cookies is 1 cup.