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A farmer planted a field of BT 124 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre and determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90,000 kernels on average. What is the farmer’s estimate of yield in bushels/acre?

I tried this but i'm not sure of my answer
1 acre = 22 ears
1 ear = 700 kernels
Therefore, 22 ears = 700 kernels * 22 = 15400kernels
1 Bushel = 90,000 kernels
Therefore, 15400 kernels = 90,000/15400 = 0.17 bushel/acre

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