Grey, pink and black cloths are sold in 60 cm, 40 cm and 20 cm long respectively. Liam wanted to buy equal length of each color. What is the least number of rolls of each color he must buy?
- grey cloth
- pink cloth
- black cloth
(a)
LCM of 60, 40 and 20 is 120.
Number of rolls for grey cloth
= 120 ÷ 60
= 2
(b)
Number of rolls for pink cloth
= 120 ÷ 40
= 3
(c)
Number of rolls for black cloth
= 120 ÷ 20
= 6
Answer(s): (a) 2; (b) 3; (c) 6