Enjoy the flight....
.... And, learn something new...
Spare parts has comics and random math topics for discussion. Includes questions (and answers), puzzles, and links to other sources.
Find a 10-digit number ABCDEFGHIJ
A is the total count of 0's in the number,
B is the total count of 1's in the number,
J is the number of 9's in the number.
Quick polynomial question
4/1/16 (April Fool's Day)
Two planes depart at the same time...
Plane A leaves NY and flies at 400 miles per hour toward LA.
Plane B leaves LA and flies at 450 miles per hour - thanks to a tailwind - toward NY.
(Assuming NY and LA are 2500 miles apart,) when the planes meet, is Plane A or B closer to NY?
The diagonals of a rhombus are 6 and 8.
What is the height?
Logarithm Change of Base
Find more logarithm questions in the Algebra II Gate
A Metric Math Gift
Inside a rectangular box, there is a 4 kilogram gift for my friend.
If the dimensions of the box are .05 decameters by 1 meter by 80 centimeters, then how many square meters of paper will I need to wrap the box?
"The hourglasses and the egg riddle"
You're a cook at a restaurant in a quaint town where clocks do not exist.
You have a 4-minute hourglass timer, a 7-minute hourglass timer, and a pot of boiling water.
A regular customer orders a 9-minute egg, and you know this person to be extremely picky -- disappointed if you overcook or undercook the egg, even by a few seconds!
Can you prepare the egg in exactly 9 minutes (using the hourglasses)?