Question 1 · Measurement · units
A roll of gold ribbon is 360 cm long. The roll of gold ribbon is 4 times as long as a roll of silver ribbon. What is the total length of 5 such rolls of silver ribbon? Give your answer in metres and centimetres.
Step 1. Draw the gold ribbon as 4 units and the silver ribbon as 1 unit.
Step 2. Four units are 360 cm, so one unit is 90 cm. Five silver rolls are five units. Then change centimetres to metres and centimetres.
1 unit = 360 ÷ 4 = 90 cm
5 units = 90 × 5 = 450 cm
450 cm = 4 m 50 cm
Ans = 4 m 50 cm

