6. Five men collected several coconuts from a deserted island, and they decided to divide the coconuts the next day. During the night, one of them decided to separate his part so he divided the total in 5 groups and give the left-over coconut to a nearby monkey, the man went to sleep. Next, another man did the same with the remainders coconuts and give the left-over coconut to the monkey. During the night, every man did the same. Next morning the men divide the remainder coconuts and give the left-over coconut to the monkey. Question: What is the minimum number of original coconuts?
7. I have weights that weight power of 2 kilograms, like 1, 2, 4, 8, 16,.....kilograms. Which weights are necessary to weight 213 kilograms?
2 answers