Instructions : From the adjacent graph, answer the following questions :
In a school students prepared toilet cleaning acid by taking acid and water as shown in the graph. The quantity of acid taken and water are shown along X, Y axis respectively.
1 . What is the scale factor used on X- axis?
A) 5 Units
B) 10 Units
C) 20 Units
D) 1 Unit
2. Above given information represent as linear equation in two variables :
A) y = 3x
B) 3x = 4y
C) 4x = 3y
D) x = 3y
3. If the quantity of acid is 20, then the quantity of water in units
A) 40
B) 20
C) 10
D) 60
4. In the diluted acid water quantity is 45, then the quantity of concentrated acid in units. [D]
A) 30
B) 90
C) 135
D) 15
5. What is the percentage of water in the diluted acid
A) 25
B) 33.3
C) 75
D) 20
