Question

In a school of 600 students, there are seven times as many right-handed pupils as left-handed pupils. How many pupils are right-handed?

Answer 1

About 516 students are right handed.

Explanation:

Divide 600 by 7 to get 85.7143. Round up to 86. Multiply times 6.

Answer 2

I'll setup the problem and leave you to solve it

Explanation:

L = number of left-handed students

R = number of right-handed students

you have 2 equations

L + R = 600 (1)

R = 7 x L (2)

solve for L in equation 1

L = 600 - R

substitute L in equation 2

R = 7(600 -R)

multiplying and gathering like terms

8R= 4200

solve for R and you have your answer