Question
Mr Ma's convertible was left with 15 fuel. He added 30 ℓ of fuel to his convertible, it became 1315 full. How much more fuel was needed to fill up Mr Ma's convertible?
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Mr Ma's convertible was left with 15 fuel. He added 30 ℓ of fuel to his convertible, it became 1315 full. How much more fuel was needed to fill up Mr Ma's convertible?