Kerry’scomputerkeyboardis18incheslongand6 inches wide. Tim’s keyboard has the same lengthto-width ratio as Kerry’s. Tim’s keyboard is 12 inches long. How wide is Tim’s keyboard?

A- 4 in
B- 9 in
C- 15in
D- 36in
Please help I am really confused.

2 answers

I found it out and by the way its A
yes answer A is correct.

length / width ratio =18 / 6 = 3

12 in / w = 3

w = 4 in