1.

The square root of a two-digit number is equal to the sum of its two digits. The total number of students in a class is such a two-digit number. Prema's position in the classroom is such that the number of students below her is four times the number of students above her. What is the position of Prema is in the class

A. 13
B. 15
C. 17
D. 19
Answer» D. 19


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