Question

14. Tasha is counting votes from a school election. There were 3 candidates running for treasurer, and students either voted for 1 of those 3 or they didn't vote at all. If there are 420 students in the school and half of them voted for Marcus, one- third of them voted for Mary, and one-seventh voted for Edward, how many students did not vote? (A) 10 (B) 20 (C) 42 (D) 105​

Answer 1

A) 10

Explanation:

Votes for Marcus: 420/2 = 210 votes

Votes for Mary: 420/3 = 140 votes

Votes for Edward: 420/7 = 60 votes

Total number of votes: 210+140+60 = 410 votes

people who didn't vote: 420-410 = 10 people