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 9 even numbers. his mother immediately worked out the answer. how much had he scored in math?
Choices
A) 80  B) 90  C) 30  D) 70  E) 60
<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<gadget id="calculator">10 * 9</gadget>
<output>90</output>

<result>B</result>
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 9 even numbers. his mother immediately worked out the answer. how much had he scored in math?
multiply(add(9, const_1), 9)
"b 90 sum = ( n x n ) + n hence , 9 x 9 = 81 + 9 = 90"