Mathematics for IGCSE & O level - Ratio And Proportion (Section 5 - No. 17)
A line segment of length 42 cm is divided in the ratio 3:4. What is the length of the shorter segment?
6 cm
18 cm
21 cm
24 cm
설명
Total ratio is 7. 42/7 = 6. 3 parts * 6= 18cm.