Question

If 3 pounds of fruit serve 7 people how many pounds of fruit serve 21 people

Answer 1

9 pounds of fruits serve 21 people

Explanation:

• 3 pounds of fruits serve 7 people
• Let as assume that 21 people serve pounds of fruit be x.

3 pounds = 7 people

x pounds = 21 people

Using cross multiplication method

3 × 7 = 7 × x

multiply

63 = 7 x.

Divide each side by 7

63 / 7 = 7 x / 7

9 = x

Answer 2

9 people

Explanation:

We can use a ratio to solve

3 lbs x lbs

---------- = ----------

7 people 21 people

Using cross products

3 *21 = 7x

63 = 7x

Divide by 7

63/7 = 7x/7

9 =x