So, this McDonalds brain teaser has kept thousands of you guessing over the last few days!
We have had such a variety of answers on this, each person adamant that they are correct.
Bearing in mind that the rule of multiplication is you always multiply first (BODMAS)…
So,
1 drink =10
1 burger = 5
Only 1 fries = 1
Therefore…
5 + 1 * 10 = 15