Many products are shrink wrapped and shipped in corrugated trays. The following figure sho...

Many products are shrink wrapped and shipped in corrugated trays. The following figure shows one way a popular product is shipped. There are 24 bottles arranged in four rows and six columns.

a. If 10 bottles are removed, how can you arrange the remaining 14 bottles so that each row and each column contain an odd number of bottles?

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b. If 14 bottles are removed, how can you arrange the remaining 10 bottles along the edges of the tray so that there is the same number of bottles along each edge?