Silver, blue and green cloths are sold in 20 cm, 10 cm and 30 cm long respectively. Sam wanted to buy equal length of each color. What is the least number of rolls of each color he must buy?
- silver cloth
- blue cloth
- green cloth
(a)
LCM of 20, 10 and 30 is 60.
Number of rolls for silver cloth
= 60 ÷ 20
= 3
(b)
Number of rolls for blue cloth
= 60 ÷ 10
= 6
(c)
Number of rolls for green cloth
= 60 ÷ 30
= 2
Answer(s): (a) 3; (b) 6; (c) 2