Grade 5 Math Skills
- Comments: 23
- Posted on: March 6th, 2009
This is a 5th grade math problem.
This is not a trick question. This is a real math problem so don’t say that a bus has no legs.
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? (Don’t count the bus driver.)
How are your math skills? This is a grade 5 math question: http://tinyurl.com/dcawwv
Replyeach big cat 7 little cat =7*7*7*7*4 = 9604 legs
each backpack 7 big cats = 7*7*7*4 = 1372 legs
each girl 7 backpack
7 girl in the car = 2*7 = 14 legs
Total = 10.990 legs
Am I correct? he3x…grade 5 math still make me confuse….
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ReplyHow are your math skills? Can you correctly answer this Grade 5 math question? http://bit.ly/plyyr
Reply14 legs for 7 girls. Cats don’t have legs, they have paws?
Actually my daughter solved this before, I think. I just can’t remember the answer. LOL!
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ReplyHeather,
There are 7 Girls……………………………. 7 X 2 = 14 legs
There are 7 X 7 = 49 Big Cats …….. 49 X 4 = 196 legs
There are 49 X 7 = 343 Little Cats. 343 X 4 =1372 legs
Total 1582 Legs on the bus, not counting the bus driver…..
ReplyOkay, well, my answer is completely different, and I could be really wrong…
I did it backwards –
7 little cats with 4 legs each – 7×4 = 28 legs
7 bigs cats with 4 legs each – 7×4 = 28 legs
7 girls with 2 legs each – 7 x 2 = 14 legs
28 + 28 + 14 = 70 total legs
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ReplyOh crap – I forgot about the 7 backbacks. That changes everything. In that case, it’s:
28 + 28 = 56 x 7 = 392
Now, 392 for each girl….
392 x 7 = 2744 – and each girl has 2 legs, so 2744 x 2 = 5488
So, there are 5488 total legs.
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ReplyLOLOL! My brain hurt just reading the comments LOLOL!
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ReplyThis has got to be a trick question.
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ReplyThat rattles my brain. I’m not good with numbers. I choose to agree with JMom and take the easy way…just legs… not paws. I think that is the trick..to see if you catch that cats and kitties have paws…not legs! So, Ya…14 legs!
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ReplyAny TwitterMathematicians ? Here’s a mind bender – http://bit.ly/plyyr
Replycats have to have legs for their paws attachment just as the girls have legs for their feet attachment. 1610 total legs
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ReplyOk, here’s my attempt:
7 girls on the bus = 14 legs.
49 big cats (7 backpacks, 7 big cats per backpack) = 49 x 4 = 196 legs for big cats.
49 big cats x 7 little cats = 196 little cats.
196 little cats x 4 legs = 784 legs for little cats.
Total: 14 girl legs, 196 big cat legs, 784 little cat legs
Grand total: 994 legs for all accounted leg-bearing passengers not counting the bus driver.
This problem bothers me because we are not told if this is an account of every thing with legs on the bus. Also, why the heck do 7 little girls EACH have 7 backpacks full of that many cats? Has anyone called PETA? Did you just steal my wallet?
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ReplySilly me. You’re right Heather, it should be like this:
7 girl on the bus * 2 girl legs / girl on the bus = 14 girl legs
7 bookbags / girl * 7 girls = 49 bookbags
0 legs / bookbag * 49 bookbags = 0 legs
7 big cats / bookbag * 49 bookbags = 343 big cats
4 legs / big cat * 343 big cats = 1372 big cat legs
7 little cats / big cat * 343 big cats = 2401 little cats
4 legs / little cat * 2401 little cats = 9604 little cat legs
Total: 14 girl legs, 0 bookbag legs, 1372 big cat legs, 9604 little cat legs
Grant Total: 10,990 legs
Crikey, that’s a lot of General Tso’s Chicken!
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ReplyNumber of backpacks in the bus = 7 x 7 =49
(In one bag)
Big cats = 7
Small cats = 7 x 7 = 49
Total cats in 1 backpack = 7 + 49 = 56
Total cats in 49 backpacks = 49 x 56 = 2744
Total cats legs in the bus = 2744 x 4 = 10976
Total girls legs in the bus = 7 x 2 = 14
So, total legs in the bus (exclude driver) = 10976 + 14 = 10990
What do you think?
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ReplyI love math puzzles! 10,990 legs!
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Reply@HeatherinBC has a great post up with supposedly “5th grade math problem” that took me two good tries – no tricks: http://bit.ly/plyyr
Replyok I agree with 10,990
girl = 2 legs
big cat per girl = 196
little cat per girl = 1372
total legs per girl = 1570 times 7 girls = 10,990
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Replyok, my head hurts from reading all these comments!
Reply238 legs….
Replywhat’s so hard about this?
Kitty Cats don’t have legs… so there is 14
ReplyI get 14 legs. Cats have paws.
ReplyAlright,
ReplySeven girls have fourteen legs and forty-nine back packs.
Forty-nine backpacks have three hundred and forty-three big cats and two thousand four hundred and one little cats.
Total that’s two thousand seven hundred and forty-four cats.
two thousand seven hundred and forty-four cats have ten thousand nine hundred and seventy-six legs. Add the seven girls legs and you get ten thousand nine hundred and ninety legs.
10990 legs.