what is the average of odd numbers from 1 to 79 ?
"sum of n odd natural number is given by , sum of n odd natural numbers = n * n average of n odd natural numbers is given by , = ( n * n ) / n = n . here , n = number of terms = ( 79 + 1 ) / 2 = 40 . so , required average = 40 . answer : d"
multiply(divide(divide(multiply(1, add(1, const_1)), const_2), 1), 79)