PROBLEM # 2
Find the volume of a solid bounded by the graph z=8-2x-4y and below by the xy-plane for (x,y) in the unit square


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Problems from 03/15/12

PROBLEM #1
Solve for x given x² = 90 -x.

SOLUTION 1
-10, 9.

PROBLEM #2
One mile upstream from his starting point, a rower passed a log floating with the current. After rowing upstream for one more hour, he rowed back and reached his starting point just as the log arrived. How fast was the current flowing??

SOLUTION 2
0.5 mph.

Congratulations to Arun Lahori, Aseem Chandawarkar, Kishore Balsara, Suhas Joglekar, and Vijay Aivalli, who were the winner of the last set of puzzles.