THE BEST ANSWER IS A. FROM THE GRADE 40 AT THE END OF THE FIRST YE...

36. The best answer is A. From the grade 40 at the end of the first year we learn that his age is 20. At the end of the second year, he will be 21 and his grade will be (21 x 2 + ½ x 40 = 62). At the end of the third year, he will be 22 and his grade will be (22 x 2 + ½ x 62 =