The average of temperatures at noontime from Monday to Friday is 25; the lowest one is 15, what is the possible maximum range of the temperatures?
Choose the correct option:
A) 20
B) 25
C) 50
D) 45
E) 75

Rationale: average = 25 , sum of temperatures = 25 * 5 = 125 as the min temperature is 15 , max would be 125 - 4 * 15 = 65 - - > the range = 65 ( max ) - 15 ( min ) = 50 answer : c
Answer: C