We want to buy 20 fruits in the market: Apples, Bananas, Coconuts, and Durians. Intense Math Problem.?

We want to buy 20 fruits in the market: Apples, Bananas, Coconuts, and Durians. We can tell apart different kind. We must buy at least 4 Apples and 3 Coconuts, but we must not buy more than 5 Bananas. Also, we must not buy more than 4 Durians. In how many different ways can this shopping be carried out? Not sure... show more We want to buy 20 fruits in the market: Apples, Bananas, Coconuts, and Durians. We can tell apart different kind. We must buy at least 4 Apples and 3 Coconuts, but we must not buy more than 5 Bananas. Also, we must not buy more than 4 Durians. In how many different ways can this shopping be carried out?

Not sure how to go about this. I feel like there is a possibility of thousands of shopping options in this case. Any help?
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