Answer: 3.75 liters
Step-by-step explanation:
1 liter = 8m^2
area of the wall = l x b (wide x high)
= 10 x 3
= 30m^2
so, quantity of paint needed = 30/8 = 3.75 liters
Hope it helped u,
pls mark as the brainliest -Ayaan707-
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