It takes Faucet H 40 minutes to fill a container measuring 19 cm by 8 cm by 10 cm completely while it takes Faucet M only 10 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 5 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 H to fill the container:

40 min → 1 tank
1 min → ¹₄₀ tank

Time taken by Faucet M to fill the container:
10 min → 1 tank
1 min → ¹₁₀ tank

Volume of the container
= 19 x 8 x 10
= 1520 cm³

Volume of 5 cubic cubes
= 5 x (5 x 5 x 5)
= 625 cm³

Time taken by Faucet H and Faucet M to fill a container:
1 min → ¹₄₀ + ¹₁₀ =⁵₄₀ = ¹₈ container

¹₈ container → 1 min
1 container → 1 ÷ ¹₈ = 1 x ⁸₁ = 8 min

Remaining volume of the container to be filled by both faucets 
= 1520 - 625
= 895 cm³

Time taken to fill the container
= ⁸⁹⁵₁₅₂₀ x 8
= 4.7105263157895
≈ 4.71 min

Answer(s): 4.71 min