A teacher teaches officially 4 batches. But every batch has a common day with some other batch.He teaches every batch two days a week. If the avg no. of students present at a given timing is 85, then how many students does he teach in total. Also find his total income if every student pays him Rs.1200?
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avg students is 85
total students is 85×4= 360
total payment is 1200×360= 422000Rupees
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