ICSE Class 7 Answered

Find the average of all odd numbers between 10 and 20.

Asked by Topperlearning User | 19 Sep, 2016, 08:56: AM

Expert Answer

$All space odd space numbers space between space 10 space and space 20 space are space 11 comma space 13 comma space 15 comma space 17 comma space 19. Average space equals space fraction numerator 11 plus 13 plus 15 plus 17 plus 19 over denominator 5 end fraction equals 75 over 5 equals 15 The space average space of space all space odd space numbers space between space 10 space and space 20 space is space 15.$