Rope p is 3 times as long as rope q. Rope q is 1m 10 cm shorter than rope r. Rope r is 1 m 30 cm shorter than rope p. What is the length of rope q? Express your answer in meters and centimeters

Answer 1

p=3q
q = r-1.1
r = p-1.3

q = p-1.3-1.1
q = 3q-2.4
...

Answer 2

Is 56cm

Answer 3

p=3q
q = r-110
r = p-130

q = p-130-110
q = 3q-240
240+q = 3q
240 = 2q
120 = q