Question
A tea shop owner bought a sack of tea. He kept 15 of the tea for his uncle and gave away some of the leftovers. He gave away 315 kg to his brother and 19 of the rest to his neighbour. He saved the remaining 6.4 kg for his own use. How much tea did he have originally?
3 m

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A tea shop owner bought a sack of tea. He kept 15 of the tea for his uncle and gave away some of the leftovers. He gave away 315 kg to his brother and 19 of the rest to his neighbour. He saved the remaining 6.4 kg for his own use. How much tea did he have originally?