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There are some flowers in a basket and at every next minute they get double. At the $30 t h$ minute the basket becomes full. Then at exactly which minute the basket is half filled ?

A

15

minutes

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B

20

minutes

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C

29

minutes

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D

12

minutes

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Solution

The correct option is C $29$ minutes
At every next minute flowers in the basket get doubled. Therefore, it was half filled in $29 t h$ minute.

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