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    It seems people are getting this whole question twisted up and going about it in a really complicated matter.

    Let's clarify, if we can!

    Each quadrat is 25cm x 25cm.

    We know that the total of 10 quadrats is 20 Plantains. Let's forget about quadrats areas for now.

    Therefore, in each quadrat we would have a mean of 2 Plaintains.

    We want 1m squared, which is a metre x a metre.

    4 quadrats in a row would make 1m BUT it isnt 1m2 because its 1m wide but only 0.25m deep (1m x 0.25m = 0.25m squared).

    So we want 4 rows of 4 quadrats. Then we'd have 1m wide and 1m deep. 4 x 4 quadrats is 16 quadrats.

    We know each quadrat averages 2 Plantains, so 16 x 2 = 32 per M squared.

    32 x 5,000 = 160,000
 
 
 
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