please give me a clue for the following question..

There is 50% chance that any bomb may hit the target. Two direct hits are required to destroy the target completely. How many bombs must be dropped for 99% chance?

Thanks in advance....

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- Aug 9th 2011, 04:51 AMelectroboyno. of bombs required to destroy : question
please give me a clue for the following question..

There is 50% chance that any bomb may hit the target. Two direct hits are required to destroy the target completely. How many bombs must be dropped for 99% chance?

Thanks in advance.... - Aug 9th 2011, 07:19 AMchisigmaRe: no. of bombs required to destroy : question