Rebecca Violet loves drinking grape juice. When her glass is full, the total mass is 450g. After drinking half of it, the total mass is 360g. What is the mass of just her glass?
A 120g B 150g C 180g D 250g E 270g
E
Rebecca Violet drinks half the grape juice, i.e., she drinks 450 – 360 = 90, 90g. So, the mass of the grape juice is 2 X 90 = 180g. and hence the mass of the glass is 450 – 180 = 270g, answer E
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