It takes Faucet W 35 minutes to fill a container measuring 16 cm by 8 cm by 11 cm completely while it takes Faucet J 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 5 cubic cubes of edges 2 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 W to fill the container:

35 min → 1 tank
1 min → ¹₃₅ tank

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

Volume of the container
= 16 x 8 x 11
= 1408 cm³

Volume of 5 cubic cubes
= 5 x (2 x 2 x 2)
= 40 cm³

Time taken by Faucet W and Faucet J to fill a container:
1 min → ¹₃₅ + ¹₁₅ =¹⁰₁₀₅ = ²₂₁ container

²₂₁ container → 1 min
1 container → 1 ÷ ²₂₁ = 1 x ²¹₂ = 10.5 min

Remaining volume of the container to be filled by both faucets 
= 1408 - 40
= 1368 cm³

Time taken to fill the container
= ¹³⁶⁸₁₄₀₈ x 10.5
= 10.201704545455
≈ 10.20 min

Answer(s): 10.20 min