5.2.1 Ratio, Rates and Proportions (I), PT3 Focus Practice
Given x : y = 4 : 5 and x + y = 180. Find the value of x.
Given x : y = 9 : 5 and x – y = 16. Find the value of x + y.
Amy, Rizal and Muthu donated to a charity fund in the ratio of 2 : 1 : 3. The total donation from Amy and Muthu was RM360.
Calculate the amount donated by Rizal.
Amy : Rizal : Muthu = 2 : 1 : 3
In the figure, TU: UV : VW = 5 : 7 : 2.
If TU = 30 cm, what is the length of TW?
In diagram below, ABC is a triangle.
The sides of the triangle are in the ratio AB : BC: CA = 4 : 7 : 6.
Find the difference in length, in cm, between AB and CA.
Difference in length between AB and CA
= 30 – 20= 10 cm