To fill a tank measuring 70 cm by 60 cm by 43 cm completely, it takes Tap U 50 minutes while it takes Tap V only 45 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 10 cubic containers of edges 18 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 
= 70 x 60 x 43
= 180600 cm³
= 180600 mℓ

Volume of 10 containers
= 18 x 18 x 18 x 10
= 58320 cm³ 
= 58320 mℓ

Remaining volume to be filled by the Tap U and Tap V 
= 180600 - 58320
= 122280 mℓ
= 122280 cm³

Fraction of the tank to be filled
= ¹²²²⁸⁰₁₈₀₆₀₀
= ⁹⁵⁴₁₄₀₉

Tap U:
1 tank → 50 min
1 min → ¹₅₀ tank

Tap V:
1 tank → 45 min
1 min → ¹₄₅ tank

Tap U and Tap V:
1 min → ¹₅₀ + ¹₄₅ = ⁹₄₅₀ + ¹⁰₄₅₀ = ¹⁹₄₅₀ tank

1 tank = ⁴⁵⁰₁₉ min

⁹⁵⁴₁₄₀₉ tank = ⁴⁵⁰₁₉ x ⁹⁵⁴₁₄₀₉ = ⁴⁰⁰⁹₂₅₀ = 16.036

Answer(s): 16.04 min