Question
A box has a ball and everyday starting with today two balls are added to the box for every ball present in it. After 4 weeks the balls are distributed equally among five boxes. The remaining balls are thrown away. How many were thrown away?
Answer: Option B
:
B
option (b)
On the first day there will be three balls, on second day there will be 9, on the third day 27.
Therefore on the 28th day =328balls.We need to find the remainder when divided by 5, 28= 4k. Therefore, 1 ball will be thrown away.
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:
B
option (b)
On the first day there will be three balls, on second day there will be 9, on the third day 27.
Therefore on the 28th day =328balls.We need to find the remainder when divided by 5, 28= 4k. Therefore, 1 ball will be thrown away.
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