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25. It takes five minutes to pass a rumour from one
person to two other persons. The tree of rumour continues.
Find how many minutes does it take spread the rumour to 768
persons. ?
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Answer Posted / usha
Its 45 min becoz the Ist person spreeds rumour to 2person in
5 min. so in next 5 min the 2 person spreads simultaneously
to 4pesons and these steped is continued tel 45min, such as
2+4+8+16+32+64+128+256+512 this indicate at each addition it
take 5min. so the answer is 45min
| Is This Answer Correct ? | 2 Yes | 1 No |
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