Given:
Emily thinks the perfect tomato sauce has 888 cloves of garlic per 500mL of sauce.
Raphael's tomato sauce has 121212 cloves of garlic per 900mL of sauce.
Answer:
Choice A will be true, that is, Emily would fine the sauce too garlicky.
Calculations:
Since Emily thinks 888 cloves of garlic is perfect for 500mL of tomato sauce, using the Unitary Method, we can easily find the number of garlic cloves required for 900mL of sauce.
First, we find number of garlic cloves 100mL of tomato sauce should have.
If 888 cloves go into 500mL, then 888÷5 should go into 500÷5 mL of sauce.
This means, approximately 177.77 cloves of garlic should go into 100mL of tomato sauce.
Next, we find the number of cloves required for 900mL.
To do this, we must multiply the cloves needed for 100mL by 9.
This means, 177.77×9 cloves of garlic must go into 100×9 mL of sauce.
In other words, 1599.93 cloves (to round off, approximately 1600 cloves) should be used in 900mL of sauce.
But as Raphael has used 121212 cloves of garlic in 900mL of sauce, which is much, much more than 1600 cloves (which Emily would have used), we can say that choice A will be true, that is, Emily would fine the sauce too garlicky.