Purple, white and green cloths are sold in 20 cm, 30 cm and 80 cm long respectively. Vincent wanted to buy equal length of each color. What is the least number of rolls of each color he must buy?
- purple cloth
- white cloth
- green cloth
(a)
LCM of 20, 30 and 80 is 240.
Number of rolls for purple cloth
= 240 ÷ 20
= 12
(b)
Number of rolls for white cloth
= 240 ÷ 30
= 8
(c)
Number of rolls for green cloth
= 240 ÷ 80
= 3
Answer(s): (a) 12; (b) 8; (c) 3