1. In 6 days of a week, 250 boys attended for the first four days and 260 boys for the last three days. The average attendance in this week is 255. The number of students present on Thursday was ?
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By: anil on 05 May 2019 02.25 am
Average attendance in 6 days = 255 => Total boys attended in 6 days = $$255 imes6=1530$$ Similarly, total boys attended in first 4 days = $$250 imes4=1000$$ Total boys attended in last 3 days = $$260 imes3=780$$ => The number of students present on Thursday = $$(1000+780)-1530=250$$ => Ans - (B)
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