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