Answer / guest

1, 2, 4, 8, 16, 32, 64, 128, 256, 489

Let's start from scratch.

? The apple vandor can ask for only 1 apple, so one box must
contain 1 apple.

? He can ask for 2 apples, so one box must contain 2 apples.

He can ask for 3 apples, in that case box one and box two
will add up to 3.

? He can ask for 4 apples, so one box i.e. third box must
contain 4 apples.

? Now using box number one, two and three containing 1, 2
and 4 apples respectively, his son can give upto 7 apples.
Hence, forth box must contain 8 apples.

? Similarly, using first four boxes containing 1, 2, 4 and 8
apples, his son can give upto 15 apples. Hence fifth box
must contain 16 apples.

? You must have noticed one thing till now that each box
till now contains power of 2 apples. Hence the answer is 1,
2, 4, 8, 16, 32, 64, 128, 256, 489. This is true for any
number of apples, here in our case only upto 1000.

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5 Answers  

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