ARITHMETIC MEAN-1

Find the arithmetic mean of -20 and 70.

Solution

a = -20, b = 70.

Arithmetic Mean(AM) = a + b

                                             2

Arithmetic Mean(AM) = -20 + 70

                                                2

Arithmetic Mean(AM) = 50

                                         2

Arithmetic Mean(AM) = 25.

∴ Arithmetic Mean(AM) is 25.

 TRY THIS…………………………..

Find the arithmetic mean of -20 and 70.