Question

The 67 is between which of the following integers?

7 and 8
B. 8 and 9
C. 9 and 10
D. 10 and 11

Answer 1

8 and 9

Explanation:

8² = 64, and 9² = 81. Equivalently, √64 = 8 and √81 = 9. Since 67 is between 64 and 81, √67 must be between 8 and 9.