-There are 7 girls in a room.
-Each girl has 7 backpacks in the room.
-In each backpack there are 7 big dogs.
-For every big dog, there are 7 puppies too!
HOW MANY LEGS ARE IN THE ROOM?
girls 7*2 = 14
big dogs 7 girls * 7 backpacks*7 big dogs* 4 = 7^3*4 =343*4 = 1372
puppies
343 big dogs * 7 * 4 = 9604
so
14+1372+9604
7 girls x 2 legs per girl = 14 legs.
7 girls x 7 backpacks = 49 backbacks.
49 backpacks x 7 big dogs = 343 big dogs
343 big dogs x 4 legs per dog = 1372 legs
343 big dogs x 7 puppies = 2401 pupies
2401 puppies x 4 legs per puppy = 9604 legs
Total legs = 9604 + 1372 + 14
Total legs = 10,990 legs
Done!
To calculate the total number of legs in the room, we need to consider the number of legs for each item in the room: the girls, the backpacks, the big dogs, and the puppies.
1. Girls: Since there are 7 girls in the room and each person has 2 legs, the total number of legs for the girls is 7 x 2 = 14 legs.
2. Backpacks: Each girl has 7 backpacks, so the total number of backpacks in the room is 7 x 7 = 49 backpacks. Since backpacks don't have legs, we don't include any legs from the backpacks.
3. Big dogs: In each backpack, there are 7 big dogs. Therefore, there are 7 big dogs per backpack x 49 backpacks = 343 big dogs. Each big dog has 4 legs, so the total number of legs for the big dogs is 343 x 4 = 1372 legs.
4. Puppies: For every big dog, there are 7 puppies. So, the number of puppies in the room is the same as the number of big dogs, which is 343 puppies. Since each puppy has 4 legs, the total number of legs for the puppies is 343 x 4 = 1372 legs.
To calculate the total number of legs in the room, we add up the legs for each item:
14 (girls) + 1372 (big dogs) + 1372 (puppies) = 2758 legs.
Therefore, there are 2758 legs in the room.