A secret can be told only 2 persons in 5 minutes .the
same person tells to 2 more persons and so on . How long
will take to tell it to 768 persons ?
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Answer / m.ismail
45min
1+2 - 5 min.
2+4 - 10min
4+8 - 15min
...
256+512 - 45min
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / avg
50 mins...
because it takes complete 5 minutes to tell the secret....
so i think 47.5 is wrong answer....
5 min-2
10-4
15-8
20-16
25-32
30-64
35-128
40-256
45-512
50-1028
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / anbarasan
5 min-2
10-4
15-8
20-16
25-32
30-64
35-128
40-256
45-512
50-1024(Only 798)
Because we need 5 mins to tell the secret.
so ans is 50min.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / garima
@Crazyfantaxy
because it is told that the same person is telling that
secret to two new people..and then to two new people..and so
on..so the people who have been told will not be taken into
account...47.5 is therefore correct ans which Harry has given
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / jackass
45 minutes.
increases by 2 after every 5 minutes.
| Is This Answer Correct ? | 16 Yes | 30 No |
Answer / jayanthi
1->2->4->8....by 10 minutes it will reach 1024 persons. so
it will take 10 minutes to 768 persons
| Is This Answer Correct ? | 2 Yes | 41 No |
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