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An ellipse passes through the points (0,-1), (2,0), (-2,2) and encloses minimum possible area. Find the equation of the ellipse.
(No Solution Yet, 0 Comments) Submitted on 2019-09-20 by Danish Ahmed Khan   
Difficulty: 2 of 5 Bonus: Thirds and Differences (in Numbers) Rating: 3.00

Arrange the digits 1-9 so that the first 3 form a number that is 1/3 of the number formed by the last three and the three digits in the middle form a number that is the difference between them.

The numbers are as they appear, not summed.
(No Solution Yet, 9 Comments) Submitted on 2005-07-21 by Erik O.   
Difficulty: 3 of 5Area of central locus (in Shapes)
Posted on 2019-09-19 by Danish Ahmed Khan (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Locate the Locus (in Shapes)
Posted on 2019-09-18 by Danish Ahmed Khan (No Solution Yet, 1 Comments)
Difficulty: 1 of 5Just substitute? (in Numbers) Rating: 5.00
Posted on 2019-09-17 by Danish Ahmed Khan (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Twin Words (in Word Problems)
Posted on 2019-09-16 by Charlie (No Solution Yet, 1 Comments)
Difficulty: 3 of 5The Five Touching Spheres 2 (in Shapes)
Posted on 2019-09-15 by Brian Smith (Solution Posted, 3 Comments)
Difficulty: 2 of 5A's, B's, C's and D's 3 (in Logic)
Posted on 2019-09-14 by Charlie (No Solution Yet, 1 Comments)
Difficulty: 4 of 5Spherical displacement of water (in Shapes)
Posted on 2019-09-13 by Danish Ahmed Khan (No Solution Yet, 5 Comments)
Difficulty: 4 of 5Hexagonal Spider Web (in Probability)
Posted on 2019-09-12 by Danish Ahmed Khan (No Solution Yet, 7 Comments)
Difficulty: 3 of 5A matter of perspective (in Shapes)
Posted on 2019-09-11 by Danish Ahmed Khan (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Jeopardy style IV (in Word Problems)
Posted on 2019-09-10 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 2 of 5One way out (in Just Math)
Posted on 2019-09-09 by Danish Ahmed Khan (No Solution Yet, 1 Comments)
Difficulty: 3 of 55 circles in a square part 2 (in Geometry)
Posted on 2019-09-08 by Jer (No Solution Yet, 2 Comments)
Difficulty: 4 of 5Inellipse (in Shapes)
Posted on 2019-09-07 by Danish Ahmed Khan (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Reduced to single digit (in Numbers)
Posted on 2019-09-06 by Danish Ahmed Khan (No Solution Yet, 14 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5The Five Touching Spheres 2 (in Shapes)
Submitted By Brian Smith. Solution posted on 2019-09-19 00:46:43
Difficulty: 3 of 5Do not say ONE (in Games)
Submitted By Ady TZIDON. Solution posted on 2019-09-17 10:11:55
Difficulty: 2 of 5Jeopardy-style A&Q (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2019-09-07 03:01:27
Difficulty: 3 of 5Unique letters (in Word Problems)
Submitted By Ady TZIDON. Solution posted on 2019-08-15 04:19:29
Difficulty: 3 of 5T-Hexomino Packing (in Shapes)
Submitted By Brian Smith. Solution posted on 2019-07-30 23:36:55
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