There are some flowers in a bucket and at every next minute they get double At the 30th minute the b...........

Quantitative Aptitude ( CCS) Number System

There are some flowers in a bucket and at every next minute they get double. At the 30th minute the basket become full. Then at exactly which minute the basket is half filled?

15 minutes

20 minutes

18 minutes

None of these

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Explanation:

The basket becomes full at 30 min and after every min the no. of flowers get doubled. So this implies that a minute before the 30th min, i.e, 29th min, the basket was half filled and a minute later, ie, the 30th min the flowers double up and fill the basket.

Hence, option 4 is the correct answer.