4. 1849 students were arranged in an auditorium in such a manner that there are as many students in a row as there are rows in the auditorium. How many rows are there in the auditorium?
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In such type of problems, where there are as many rows as the number of students, we have to take underroot of student nos. to find number of student equal to number of rows.
Accordingly
✓1849
✓43×43
= 43
Hence
hence there are 43 students in 43 rows Sitting in an auditorium.
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