Blue, grey and silver cloths are sold in 60 cm, 20 cm and 30 cm long respectively. Pierre wanted to buy equal length of each color. What is the least number of rolls of each color he must buy?
- blue cloth
- grey cloth
- silver cloth
(a)
LCM of 60, 20 and 30 is 60.
Number of rolls for blue cloth
= 60 ÷ 60
= 1
(b)
Number of rolls for grey cloth
= 60 ÷ 20
= 3
(c)
Number of rolls for silver cloth
= 60 ÷ 30
= 2
Answer(s): (a) 1; (b) 3; (c) 2