There are seven men on a bus. Each has seven backpacks. Each backpack has seven cats, each nursing seven kittens, all on the bus. How many legs are on the bus? (This is not a trick question. The driver has stepped off to use the facilities; the cats should have. All animals and humans have the normal number of legs.)

Lets see..

7 men=14 legs
7 backpacks with 7 cats each, each backback as 7 cats=28 cat legs. 28x7=196
next is the real kicker..7 cats each nursing 7 kittens. There are 49 cats in the seven backpacks-nursing 343 kittens,

I think there needs to be an additional x 7 in the second one -- each man had 7 backpacks!!

Sorry about that, I hit reply before I finished.

Lets see..
7 men=14 legs
7 backpacks with 7 cats each, each backback as 7 cats=28 cat legs. 28x7=196
next is the real kicker..7 cats each nursing 7 kittens. There are 49 cats in the seven backpacks-nursing 343 kittens, totalling 1,372 legs. So altogether, it totals 1,582 (14+196+1372)

You wrote, "7 backpacks with 7 cats each, ..."

But there are 49 backpacks -- 7 men, EACH having 7 backpacks ...

OK..here we go again

please correct me if I am wrong
7 men=14 legs
each man has 7 backpacks each with 7 cats each.each one of those cats is nursing 7 kittens.

56 cats and kittens to each backpack-392 cats total per man
392 x 7 = 2,744 x 4 is 10,976 + 14 is
10,990

To determine the number of legs on the bus, we need to consider the number of legs contributed by each element on the bus: the men, the backpacks, the cats, and the kittens.

1. The number of legs contributed by the men:
Since there are seven men, and each man has two legs, the men contribute a total of 7 * 2 = 14 legs.

2. The number of legs contributed by the backpacks:
Each backpack does not have any legs, so the backpacks do not contribute any additional legs.

3. The number of legs contributed by the cats:
Since each backpack has seven cats, and each cat has four legs, the 7 * 7 = 49 cats contribute 49 * 4 = 196 legs.

4. The number of legs contributed by the kittens:
Similarly, since each cat has an additional seven kittens, the 7 * 7 = 49 cats contribute another 49 * 4 = 196 legs.

Therefore, the total number of legs on the bus would be the sum of all these contributions: 14 (from the men) + 0 (from the backpacks) + 196 (from the cats) + 196 (from the kittens) = 406 legs.

So, there are 406 legs on the bus in total.