A glass is full of milk. The total weight is 370g. When the glass is half full of milk, the weight is 290g. What is the weight of the glass? Answer: glass 210g
A glass is full of milk. The total weight is 370g. When the glass is half full of milk, the weight is 290g. What is the weight of the glass? Answer: glass 210g
A glass is full of milk. The total weight is 500g. When the glass is 3/4 full of milk, the weight is 400g. What is the weight of the glass?
Let us assume that:
The weight of the glass = G
The weight of one glass of milk (just milk - without the glass) = M
Then
A glass is full of milk. The total weight is 500g............. → ...........G + M = 500 ..................................................(1) When the glass is 3/4 full of milk, the weight is 400g... → ...........G + (3/4) * M = 400 ........................................(2)
If we subtract (2) from (1), we get:
(1/4) * M = 100
M = 400 g
Using (1)
G + M = 500
G + 400 = 500 → G = 100 g........................ answer
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