Question

A line PR, 3 cm long, is divided into equal segments. Point Q lies on the line such that the ratio of the length of PQ to that of PR is 4:9. What is the length of QR? Give the answer as a fractional value.

Answer 1

8/3

Explanation:

4:9

pq:pr

x:3

Cross multiply and make x subject of the formula

X=4/3

3-4/3=8/3