Red, black and silver cloths are sold in 60 cm, 80 cm and 20 cm long respectively. Japheth wanted to buy equal length of each color. What is the least number of rolls of each color he must buy?
- red cloth
- black cloth
- silver cloth
(a)
LCM of 60, 80 and 20 is 240.
Number of rolls for red cloth
= 240 ÷ 60
= 4
(b)
Number of rolls for black cloth
= 240 ÷ 80
= 3
(c)
Number of rolls for silver cloth
= 240 ÷ 20
= 12
Answer(s): (a) 4; (b) 3; (c) 12