Question
Mr Loo's bus was left with 25 fuel. He added 20 ℓ of fuel to his bus, it became 815 full. How much more fuel was needed to fill up Mr Loo's bus?
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Mr Loo's bus was left with 25 fuel. He added 20 ℓ of fuel to his bus, it became 815 full. How much more fuel was needed to fill up Mr Loo's bus?