Question

To sell a new chocolate bar the manufacturer

advertises "20% or more for free" if a standard
chocolate bar is 50g what size is the new bar

Answer 1

60 grams

Explanation:

If it was 100 grams, and you added 20 percent, you'd have 120 grams, right

But it is half the size, so you end up with half of that, 60 grams.