Black, purple and white cloths are sold in 80 cm, 10 cm and 20 cm long respectively. Valen wanted to buy equal length of each color. What is the least number of rolls of each color he must buy?
- black cloth
- purple cloth
- white cloth
(a)
LCM of 80, 10 and 20 is 80.
Number of rolls for black cloth
= 80 ÷ 80
= 1
(b)
Number of rolls for purple cloth
= 80 ÷ 10
= 8
(c)
Number of rolls for white cloth
= 80 ÷ 20
= 4
Answer(s): (a) 1; (b) 8; (c) 4