Thirty-five percent of the students in Mr. Remington's class are left-handed. If 7 students are left-handed, how many students are right-handed?

Answer 1

If 35% are left-handed, then 65% are right-handed.

So the question is: If 35% of a number is 7, then what is 65% of that number?

This can be solved as a proportion.

7/35 = x/65

Cross multiplying gives

35x = 7(65)

x = 7(65)/35 = 13