Mr Kumar had 6 of brown paint and 10.05 ℓ of black paint. He poured out 6 cups of paint for each colour to paint his bookshelf. In the end. there was 2/5 as black paint.

Question

(a) How many litres of paint did he use for each colour?

(b) What was the capacity of the cup?

Answer 1

First, let's calculate the total amount of paint Mr Kumar had:
Total amount of brown paint = 6 cups * 6ℓ/cup = 36ℓ
Total amount of black paint = 10.05ℓ

Next, let's calculate how much black paint remained after pouring out 6 cups:
Remaining black paint = 10.05ℓ - 6 cups = 10.05ℓ - 6 * 6ℓ/cup = 10.05ℓ - 36ℓ = -25.95ℓ

Since the remaining black paint is negative, it means that there is not enough black paint, and the total paint used is less than 2/5 of the bookshelf.

(a) Since there is not enough black paint, we can't calculate how much paint was used for each color.

(b) The capacity of the cup cannot be determined based on the information given.