One bus with 7 girls in it

There is one bus with 7 girls in it. Each girl has 7 backpacks and each backpack has 7 big cats. Each big cat had 7 little cats. How many legs are there all together?

Answer #1

Im confuzzled!!!

One None Some I dont know

Answer #2

Arachnid, I cannot find anywhere in the original question that each of of the girls are expected to carry the backpacks - rather, it simply states they have them on the bus with them, how they got there is not stated (cats and bags assembled on the bus?). The assumption that the bus is a school bus is also a bold one, as is the fact that a school bus carries 25 - the average seating for a suburban bus is 39 seats (and I would assume that School Buses are the same, or at the least 33), and a touring (long distance bus) is designed to carry on average 43 passengers. A touring bus is also designed so that it can carry up to 20kg of luggage per passenger so I am lead to believe.

If they were using a Touring Bus, the claim is quite reasonable by my calculations. Not that the question claimed it was possible, but rather asked how many legs there were.

Answer #3

You’re plainly asking the wrong question. The right question is: How much weight are these poor children expected to carry, and will the bus be able to carry 7 of them?

  • Wikipedia tells us a kitten old enough to be spayed or neutered weights about 1kg. Let’s be charitable and assume these kittens only weigh 500 grams each.
  • A full grown cat weighs between 2.5 and 7Kg - let’s take an average and assume about 4kg.
  • For the sake of simplicity, assume the backpacks themselves have negligible weight.
  • The weight of a girl varies from girl to girl and year to year, but let’s assume 40kg.

Each backpack has 7*7 kittens, for a total of 24.5Kg. It also has 7 cats, for another 28Kg, totalling 52.5kg. I hope the backpacks are of sturdy construction.

Each unfortunate child is carrying 7 of these backpacks, for a total of 367.5kg of screaming, scratching cat. To give you an idea, the world record for weightlifting in the men’s 56kg class is a mere 305kg. The child also weighs another 40kg, bringing the total up to 407.5kg per person.

7 on the bus makes 2852.5kg. Load limits for buses are harder to come by, but assuming this is a school bus (given the 7 children, this seems plausible), your average school bus is equipped to deal with perhaps 25 children, so probably no more than about 1500kg.

Clearly, these 7 girls could not carry this many cats, and even if they could, the bus wouldn’t be going anywhere.

In summary, I find your claim preposterous.

Answer #4

Arachnid, sometimes I think you’re the most cantankerous gentleman I have ever met! (That, and I think those schoolgirls are a bit too skinny!)

Answer #5

Or…2401?

Wait…does each girl have one backpack each? Or does each girl have 7 backpacks each? If so..that would make 16807? Oh no im so confused :( I’m too mathematical..or not. lol

Answer #6

This question was asked about 10 hours ago by spaschal35 and 10990 was the answer I posted. Each ‘pack has 7cat and 7 x 7 kit(ten)s for a total of 56 felines per ‘pack. Each girl has 7 ‘packs = 7 x 56 felines = 392 of those suckers 7 girls x 392 cats per girl = 2744 tabbies 2744 cats have 10976 legs among them. Add to that the 7 pairs of legs on the girls (hint = 14) and you have 10990 legs … 10992 if you count the bus driver.

Answer #7

Funguy: Here’s how I calculated it

7x4=28 (number of big cats in each backpack x how many legs they each have = 28 big cats legs)

28x7=196 (Number of legs of 7 cats x number of big cats in the bag= number of all little cats legs)

196+28=224 (Big cats legs + little cats legs = all legs in each back pack)

224x7=1568 (all legs in each backpack x how many one girl has = number of legs each girl carries)

1568+2=1570 (Number of all legs in backpacks + girl’s legs = number of legs per unit)

1570x7=10, 990 (number of legs in one unit x number of units = total number of legs)

A unit refers to how many legs all up of a girl with 7 backpacks, each containing 7 cats, each cat with 7 kittens.

Then, you could maybe add on 2 more legs in the equation, if there is the addition of a bus driver. You could also add more or less, assuming there may be other passengers on the bus, or some of them may be amputees.

Answer #8

2758

Answer #9

This was just asked:

http://www.funadvice.com/q/school_bust

Maybe that original poster knows the answer?

Answer #10

I got 10,990, but I don’t know the answer. That is why I posted it :)

Answer #11

This reminds me of “As I was going to St Ives…”

Answer #12

do you know the answer but heres my guess:2,758…am I right?

Answer #13

well, how many people are in the bus total?

Answer #14

my math teacher gave us that problem!:)

Answer #15

Hahaha I’m laughingg so much at arachnid’s answer. Heheheee. LOL

Answer #16

I got 10,990. whats the answer??

Answer #17

9620

Answer #18

None…=]

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