Question

A restaurant had n kg of sugar in its stock. Then, 5 kg sugar was used to make the first dessert on

the menu. Next, 3 kg sugar was used to make the second dessert on the menu. Write an
expression to show how many kilograms of sugar were left in the stock, and then simplify the
expression.

Answer 1

Expression showing the sugar left is
`(n-8)` kg.

Explanation:

We are given that,

Total number of sugar in the stock initially = n kg

Amount used for making 1st dessert = 5 kg

Amount of sugar left =
`(n-5)` kg

Again, Amount used for making 2nd dessert = 3 kg

Amount of sugar left =
`(n-5)-3` kg

i.e. Amount of sugar left =
`(n-8)` kg

Thus, the expression showing the sugar left is
`(n-8)` kg.