Question

A point R divides a line PQ internally in the ration 3:4. Another point S, divides the line PR externally in the ration 5:2. Given that PQ = 8cm, calculate the length of RS

Answer 1

R is 3/7 of the way along
S is 5/7 of the way along

RS is the difference: 2/7 * 8 = 16/7 cm

Answer 2

16/7