That's quite easy,5 trips.What you do is guess and check.You carry 3 bundles of wood on your first trip so it can't be 1.On your second trip you would carry 6 so its not 2 trips either.3 trips would be 9 bundles of wood so its ot that.4 would be 12 bundles of wood but you need 13!So the answer is 5 trips because 5x3=15.2 more bundles of wood than what you need.
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Apart from being a trick question, he would have to make 5 trips, four with 3 bottles and one trip with only 1 bottle.
4 of them. if it only went back and forth, the number of complete trips would be 60/7 or 8 trips each way or 4 round trips with 4 minutes left over, However, there is always going to be some time spent for unloading and loading which can reduce the number of trips depending on the time it takes to load and unload.
11. wanda must make 11 journeys if she is only allowed carry 10g each journey.
noone
he taught himself most of the things he came up with mostly on his trips with his father