4
Question
Amora has 1000 oz of oil. She uses a constant amount of oil every day for cooking as shown. On the 9th day, how much oil will remain?
50, 100, 150, 200, 250,...
Amora has 1000 oz of oil. She uses a constant amount of oil every day for cooking as shown. On the 9th day, how much oil will remain?
50, 100, 150, 200, 250,...
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Solution
The correct option is B 550 oz
The sequence shows the oil used everyday is:
50, 100, 150, 200, 250,...
Let us find the difference between the terms.
Difference = 100 - 50 = 50
Hence, the next term in the series is 250 + 50 = 300
The consecutive terms are 350, 400, 450.
On the 9th day, 450 oz of oil would have been used.
Remaining oil = 1000 - 450 = 550
The remaining oil in the container = 550 oz
The sequence shows the oil used everyday is:
50, 100, 150, 200, 250,...
Let us find the difference between the terms.
Difference = 100 - 50 = 50
Hence, the next term in the series is 250 + 50 = 300
The consecutive terms are 350, 400, 450.
On the 9th day, 450 oz of oil would have been used.
Remaining oil = 1000 - 450 = 550
The remaining oil in the container = 550 oz
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