Maximum how many coconuts he can save when he reaches last check point ?
An intelligent trader travels from 1 place to another carrying 3 sacks having 30 coconuts each.
No sack can hold more than 30 coconuts. On the way he passes through 30 checkpoints and on each checkpoint he has to give 1 coconut for each sack he is carrying.
Maximum how many coconuts he can save when he reaches last check point ?
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First 10 checkpoints he will pay 1 coconut from each sacks, total 30. Afther that he will have only 60.
He will put them in two sacks. And for the next 15 checkpoints he will pay 1 coconut from each sacks, total 30,
By now he will have only 30 coconuts, which he will put in single sack and for remaining 5 chrckpoints he will 5 coconuts thus he will save 25 coconuts in total.