Eleven members of the middle school math club each paid the same amount for a guest speaker to talk about problem solving at their math club meeting. they paid their guest speaker $1⎯⎯a⎯⎯⎯2⎯⎯ $ 1 a 2 . what is the missing digit a a of this 3 3 -digit number?

A=3

Step-by-step explanation:

This number, 1A2, must be divisible by 11. Using trial and error, we can quickly find that this number is 132.

BTW: Is this from AoPS by any chance? It looks quite familiar.

the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05