exam Maths Puzzle Numerical Ability

sit ups #of students
20 5
21 3
25 2
27 2

the table above shows the number of sit ups completed by 12 students in gym class. what is th

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Angela calculates the sum of the interior angles of a regular 13-gon by multiplying 13 by 180 degrees to arrive at 2340 degrees. What mistake has Angela made and what is the correc divide n^11/n^2