ICAS | Math | Math Olympiad
Similar Posts
Digit problem?
Question If the digits 2,3,7 and 6 are arranged randomly so as to form a four-digit number,then how…
How Many Triangles?
A Method to count: Assume first that the smallest triangles are of a unit length. Note that every…
Magic Square Invariant – 4 by 4 Magic Square
Question A 4 x 4 Magic Square is such that each of its Row, Column and Diagonal has…
Algebra: Solve x for [ {2 + (3^1/2)}^1/2]^x + [{2 – (3^1/2)}^1/2]^x = 4?
Answer The trick is this. SQUARE THE EQUATION. Note that : [{2 + (3^1/2)}^1/2]^x = [{2 + (3^1/2)}^(x/2)]…
Math Pattern
Question if 1=5 2= 25 3=125 4=625 then 5= what? Answer Think as follows. 1 is 5^1 =…
A famous one: 10:3=3.3333~ /a:b=c / why is c*b not a?
Answer It’s because strictly speaking c*b is NOT defined. Why? Multiplication is Not defined for a number with…


