1, seven apples have averaged 12 players, I hope that each apple should not cut more than four. How should I solve?
2, one person he has some records, once he didn't give half of these records in the absence of the record of the record, and half of the records of the records in the remaining album. Then he gave half of the remaining record of half and a record of the record. Finally, only one record was left. How many albums have this person?
3, there is a kind of mosquito coil, each volume of mosquito coils can be fixed for an hour, but because the mosquito coil is uneven, the combustion is not uniform, and it cannot be determined. If there is no watch and does not allow any tags, it is time to determine 45 minutes, how to ignite the minimum mosquito coil?
4, the store manager wants five bags of flour. There is a scaner in the store, but there are some scales, and it is impossible to refer to 50 kilograms of weight, and the weight of the five bags is between 50 65 kg per bag. After the manager moved its brain, this problem was solved. He said that the five pockets pair one pair, five pockets composition different ten pairs, known as ten times. Ten numbers were arranged by small to large, and 110 kg, 112 kg, 113 kg, 114 kg, 115 kg, 116 kg, 117 kg, 118 kg, 120 kg, 121 kg.
Excuse me: How many kg is weighing each pocket?
