Question

P is a rectangle with a length of 40cm and a width of x cm.

Q is a rectangle with a width of y cm.
The length of Q is 25% more than the length of P.
The area of Q is 10% less than the area of P.
Work out the ratio x : y.
Give your answer in its simplest form.

Answer 1

Answer；

By simply calculating, using the length and width with the relationship given, it's solved.

25:18

Explanation:

see the graph↑

Hope this one can help you!!