The average of temperatures at noontime from Monday to Friday is 45; the lowest one is 42, what is the possible maximum range of the temperatures?
Choose the correct choice from the following: A) 15 B) 25 C) 40 D) 45 E) 75
there are 5 days so the sum of temperature can be 45*5= 
<gadget id="calculator">45*5</gadget>
<output>225</output>
225   lowest is 42. to find the maximum range we can say the temperature was the lowest for 4 of the 5 days   so   4*42= 
<gadget id="calculator">  4*42</gadget>
<output>168</output>
168.   on the fifth day it is   225-168= 
<gadget id="calculator">  225-168</gadget>
<output>57</output>
57   range is therefore  57-42= 
<gadget id="calculator"> 57-42</gadget>
<output>15</output>
15   answer 15
<result>A</result>
The average of temperatures at noontime from Monday to Friday is 45; the lowest one is 42, what is the possible maximum range of the temperatures?