To fill a tank measuring 30 cm by 40 cm by 36 cm completely, it takes Tap G 25 minutes while it takes Tap H only 32 minutes. How long will it take to completely fill the container with water if both the taps are turned on at the same time and 8 cubic containers of edges 10 cm, filled to the brim with water are poured into the tank? Leave your answer in minutes and round off to 2 decimal places.
Volume of the tank 
= 30 x 40 x 36
= 43200 cm³
= 43200 mℓ

Volume of 8 containers
= 10 x 10 x 10 x 8
= 8000 cm³ 
= 8000 mℓ

Remaining volume to be filled by the Tap G and Tap H 
= 43200 - 8000
= 35200 mℓ
= 35200 cm³

Fraction of the tank to be filled
= ³⁵²⁰⁰₄₃₂₀₀
= ²²₂₇

Tap G:
1 tank → 25 min
1 min → ¹₂₅ tank

Tap H:
1 tank → 32 min
1 min → ¹₃₂ tank

Tap G and Tap H:
1 min → ¹₂₅ + ¹₃₂ = ³²₈₀₀ + ²⁵₈₀₀ = ⁵⁷₈₀₀ tank

1 tank = ⁸⁰⁰₅₇ min

²²₂₇ tank = ⁸⁰⁰₅₇ x ²²₂₇ = ²⁸⁵⁹₂₅₀ = 11.436

Answer(s): 11.44 min