Three boxes sit on a shelf, labeled 1, 2, and 3. Box 1 contains twice as many marbles as Box 2, and Box 3 contains three more marbles than Box 1. If Box 2 contains 4 marbles, how many marbles are on the shelf in total?
23 marbles
Box 2 has 4 marbles. Box 1 has twice as many as Box 2, which is 8 marbles. Box 3 has three more than Box 1, which is 11 marbles. Adding them together gives 4 + 8 + 11 = 23 marbles.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Easy. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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