Summer 2003

For your warm-ups we offer two analogy problems.

MOTHER’S DAY IS TO FATHERS DAY AS CHRISTMAS IS TO ______________.

             ELEVEN IS TO EQUAL AS EIGHT IS TO _______________.

For the real problem, we update a classic involving a column of foot soldiers and a messenger on horseback.

Problem:  An armored column is 1 kilometer long and is traveling at 60 kilometers per hour along a straight path from Kuwait City to Baghdad. A journalist, embedded in a Bradley, starts at the rear of the column, goes to the front of the column and immediately returns to the rear. The journalist travels at a constant speed, and the column traveled 6 km. by the time the journalist returned to the rear of the column. Find the speed of the Bradley in km./hr. Hint: there should be a  in your answer.

Solvers of the winter problems are listed. You found many interesting solutions to the second paper folding problem. Several solved by making an additional fold with C’ folded to A resulting in an easy solution. Try it! All methods should lead to the result .