Math Is Fun Forum

Mathsyperson is correct!

Problem # k + 57

The circumference of the front wheel of a cart is 30 feet long and that of the back wheel is 36 ft long. What is the distance travelled by the cart, when the front wheel has done five more revolutions than the rear wheel?

Problem # k + 56

A tennis championship is played on a knock-out basis, i.e., a player is out of the tournament when he loses a match.

(a) How many players participate in the tournament if 255  matches are totally played?
(b) How many matches are played in the tournament if 63  players totally participate?

justlookingforthemoment : Guess 9 : 6234
Reply :- 1 Bull, 3 Cows.

Or this
and this.

Good one, Ricky!

If you meant
1001! + 2, 1001! + 3, 1001!+4 .........1001! + 1001,
you are correct.
Well done, got three in a row right!
A set of slightly smallers numbers would be
999! + 2, 999! +3, 999! + 4,.............999! + 999, 999! + 1000, 999! + 1001.
Because, 999! + 999 would be divisible by 999,
999!+1000 would be divisible by 1000,
999! + 1001 would be divisble by 7, 11, 13.
999! + 1002 would be divisible by 2.

BTW, you got a nice avatar!

justlooking for the moment : Guess 6 : 3265
Reply : 1 Bull, 2 cows

Nice to see Rora's post....after a long time.

Did you hear about the guy that lost his left arm and leg in a car crash?
He's all right now.

Did you hear about the red ship and the blue ship that collided?
Both crews were marooned.

Did you hear the one about the statistician?
Probably....

justlookingforthemoment : Guess 5 : 6320
Reply : 3 cows.

Problem # k + 54

Why is any four digit number abcd written again adjacent to it, resulting in abcdabcd, always divisible by 73? (a,b,c,d ∈ 0,1,2,3,4,5,6,7,8, and 9).

Welcome, maths_phys_bio,
Toronto is known for CN Tower, isn't it?
We already have a Zach here. Zach, the Moderator.

There is no longer any contradiction. I have corrected the examples now. Thanks, Mathsy.

Reply to Guess  1 :- 1 Cow 

Reply to MathIsFun's guess 1122  :- Repetition of digits not allowed.