Rithvik's Blog 11+

On an 8x8 chessboard, a knight is placed at one corner. What is the total number of squares (including the one it starts on) the knight can move to in its first move? Remember, a knight moves in an L-shape: two squares in one direction and then one square perpendicular to that, or one square in one direction and then two squares perpendicular to that.

A number is called 'special' if it is a three-digit number and its digits are in arithmetic sequence. How many 'special' numbers are there where the middle digit is 5?

How many different 3 digit numbers can you make from the digits 1, 1 and 3? You can use each digit as many times as you like.

 How many different four digit numbers can be made from the digits 2, 2, 2, 3 and 3?