Question

Here are some of the ingredients for bolognese sauce:
400g minced beef
800g chopped tomatoes
600ml stock
300ml red wine

Julie only has 300g of minced beef.
How much of the other ingredients should she use?
___g chopped tomatoes
___ml stock
___ml red wine

Answer 1

Answer:
600g chopped tomatoes
450ml stock
225ml red wine

Explanation:
400g of minced beef is required, Julie only has 300g.
300g is 75% of 400g.
Therefore, only 75% of all the ingredients will be needed now.

Answer 2

Answer:

The quantity of other ingredients Julie should use with 300g minced beef is:

600 g chopped tomatoes

450 ml stock

225 ml red wine

Step-by-step explanation:

Quantity of chopped tomatoes used for 400 g minced beef: $800g$

Quantity of chopped tomatoes used for 1 g minced beef:  $\frac{800}{400}g$

Quantity of chopped tomatoes used for 300 g minced beef:  $(2\times 300) g = 600g$

So, Julie should use 600 g chopped tomatoes.

Quantity of stock used for 400 g minced beef: $600ml$

Quantity of stock used for 1 g minced beef:  $\frac{600}{400}ml$

Quantity of stock used for 300 g minced beef:  $(\frac{3}{2}\times 300) ml = 450ml$

So, Julie should use 450 ml stock.

Quantity of Red wine used for 400 g minced beef: $300ml$

Quantity of Red wine used for 1 g minced beef:  $\frac{300}{400}ml$

Quantity of Red wine used for 300 g minced beef: $(\frac{3}{4}\times 300) ml = 225ml$

So, Julie should use 225 ml Red wine.