tim came second in math . when his mother asked him how much he had scored , he answered that he got the sum of the first 11 even numbers . his mother immediately worked out the answer . how much had he scored in math ?
"c 132 sum = ( n x n ) + n hence , 11 x 11 = 121 + 11 = 132"
multiply(add(11, const_1), 11)