It takes Faucet E 30 minutes to fill a container measuring 17 cm by 10 cm by 12 cm completely while it takes Faucet D only 15 minutes. How long will it take to completely fill the container with water if both faucets are turned on at the same time and 6 cubic cubes of edges 3 cm, filled with water, are poured into the container? Leave the answer in minutes and round off to 2 decimal places.
Time taken by Faucet E to fill the container:

30 min → 1 tank
1 min → ¹₃₀ tank

Time taken by Faucet D to fill the container:
15 min → 1 tank
1 min → ¹₁₅ tank

Volume of the container
= 17 x 10 x 12
= 2040 cm³

Volume of 6 cubic cubes
= 6 x (3 x 3 x 3)
= 162 cm³

Time taken by Faucet E and Faucet D to fill a container:
1 min → ¹₃₀ + ¹₁₅ =³₃₀ = ¹₁₀ container

¹₁₀ container → 1 min
1 container → 1 ÷ ¹₁₀ = 1 x ¹⁰₁ = 10 min

Remaining volume of the container to be filled by both faucets 
= 2040 - 162
= 1878 cm³

Time taken to fill the container
= ¹⁸⁷⁸₂₀₄₀ x 10
= 9.2058823529412
≈ 9.21 min

Answer(s): 9.21 min