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Let there be odd number of stones placed one by one at an interval of 10 m along a straight road. All the stones has to be assembled at the middle stone. A person start from one end and can only carry one stone at a time. If the distance covered by the person is 3 km in this job, then the number of stones is

Answer» Let there be odd number of stones placed one by one at an interval of 10 m along a straight road. All the stones has to be assembled at the middle stone. A person start from one end and can only carry one stone at a time. If the distance covered by the person is 3 km in this job, then the number of stones is


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