Question 13
Let $[x]$ denote the greatest integer not exceeding x. Evaluate $[1^2/2]+[2^2/2]+[3^2/2]+\cdots+[20^2/2]$.
Original printed choices: A: 20; B: 1435; C: 140; D: 1260.
Editorial format: answer directly; the printed choices are retained for source fidelity. See the solution for the source issue.
Original printed choices: A: 20; B: 1435; C: 140; D: 1260.
Editorial format: answer directly; the printed choices are retained for source fidelity. See the solution for the source issue.