There are 7 girls in a bus. Each girl has 7 backpacks. In each backpack, there are 7 big cats. For every big cat there are 7 little cats. Question: How many legs are there in the bus?

Riddle for Sam
Riddle for Sam
7 girls each carrying 7 backpacks. So together there are 49 backpacks.
Each backpack has 7 big cats. So 49 backpacks have 49 x7 = 343 big cats
Each big cat is carrying 7 small cats(?) so, 343 cats will carry 2401 small cats.
Counting
7 girls will normally have 2 legs so 14 legs.
Each big cat will normally have 4 legs so 343(4) = 1372 legs
Each small cat will normally have 4 legs so 2401(4) = 9604 legs
Add them to get 9604 + 1372 + 14 = 10,990 legs in the bus.
I found an answer from www.scientificamerican.com
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I found an answer from www.quora.com
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I found an answer from www.splashlearn.com
What is Repeated Addition? - Definition, Facts & Example
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