Directions: Answer the question based on the information given below:
Given bar graph shows the number of Icecreams of three different flavors sold on four different days of a week by an Icecream parlour.
Note:
1. Marked Price of one Vanilla, one Strawberry, and one Guava is Rs. 220, Rs. 240, and Rs. 160 respectively on Monday.
2. Percentage Discount offered on the Marked Price on each Icecream on Tuesday is the same as the percentage discount offered on the Marked price on each Icecream on Monday.
3. Cost Price of one Vanilla, one Strawberry, and one Guava is Rs. 120, Rs. 140, and Rs. 80 respectively on Wednesday and Thursday.
If the difference between the total number of Vanilla ice cream and Guava ice creams sold by parlour on all four days together is represented as (x), the difference between the total number of Strawberry ice cream and Vanilla ice creams sold by parlour on all four days together is represented as (y), and the difference between the total number of Strawberry ice cream and Guava ice creams sold by parlour on all four days together is represented as (z), then which of the following equation(s) is/are correct?
I. y - 25 + x + 16 = z + 2451
II. y/2 + 200 = x - z - 415
III. z + 100 = y - z + 386