One full box of candies weighs 1.59 kg. If I take out 40 candies from the box, the weight of the box comes down to 1.47 kg. How many candies are there in the box originally? (Ignore the weight of the box that holds the candies)
My answer 530
The weight of 40 candies must be 1.59 minus 1.47 = 0.12 kg = 120 grams. Then, each candy must weigh 3 grams, Then original weight of the box was 1.59 kg equal 1590 grams. Number of candies equal 1590/3 equal 530 candies.
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