Question

This question pls fast with explanation. Best answer will be marked as Brainliest. Thanku

Answer 1

Answer:

400ml is the answer of this sum

Answer 2

Answer:

500 ml

Step-by-step explanation:

let the total quantity be x

and David ate 4/5 of total quantity

so

4/5 × x = x-100

4x = 5(x-100)

4x = 5x -500

5x = 4x + 500

5x - 4x = 500

x = 500 ml