1.  Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
A. 3
B. 10
C. 17
D. 20

Answer: Option A

Explanation:

Let the number be x.

Then, x + 17 = 60 / x

<=> X2 + 17x - 60 = 0

<=> (x + 20) (x - 3) = 0

<=> x = 3