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Algebra Difficulty 2.0 Junior Find the answer United Kingdom

Jill was given a large jar of jam. She gave one sixth of the jam to Jan. Jill then gave one thirteenth of the remaining jam to Jas. Jill was left with 1 kg of jam. What was the weight, in kg, of the jam in Jill's jar at the start?

(A) $1.2$ (B) $1.3$ (C) $1.4$ (D) $1.6$ (E) $1.9$

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