A farmer planted a field of BT 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He 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?

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To estimate the yield in bushels per acre, we need to follow these steps:

Step 1: Calculate the number of ears per acre.
- The farmer counted 22 ears in 1/1000 of an acre, so we can use this information to find the number of ears per acre.
- There are 43,560 square feet in an acre, so 1 acre is equal to 43,560/1000 = 43.56 square feet.
- Since the farmer counted 22 ears in 43.56 square feet, we can multiply this by 1,000 to find the number of ears per acre.
- Number of ears per acre = 22 * 1,000 = 22,000 ears.

Step 2: Calculate the number of kernels per acre.
- The farmer determined that each ear has about 700 kernels on average.
- Number of kernels per acre = Number of ears per acre * Number of kernels per ear.
- Number of kernels per acre = 22,000 * 700 = 15,400,000.

Step 3: Convert the number of kernels per acre to bushels.
- The farmer knows that a bushel contains about 90,000 kernels on average.
- Number of bushels = Number of kernels per acre / Number of kernels per bushel.
- Number of bushels = 15,400,000 / 90,000 = 171.11 bushels.

Therefore, the farmer's estimate of yield in bushels per acre is approximately 171.11 bushels/acre.