The average of temperatures at noontime from Monday to Friday is 50; the lowest one is 40, what is the possible maximum range of the temperatures? Select
A) 20
B) 25
C) 40
D) 50
E) 75
there are 5 days so the sum of temperature can be 50*5= 
<gadget id="calculator">50*5</gadget>
<output>250</output>
250   lowest is 40. to find the maximum range we can say the temperature was the lowest for 4 of the 5 days   so   4*40= 
<gadget id="calculator">  4*40</gadget>
<output>160</output>
160.   on the fifth day it is   250-160= 
<gadget id="calculator">  250-160</gadget>
<output>90</output>
90   range is therefore  90-40= 
<gadget id="calculator"> 90-40</gadget>
<output>50</output>
50   answer 50
<result>D</result>
The average of temperatures at noontime from Monday to Friday is 50; the lowest one is 40, what is the possible maximum range of the temperatures?