The average of temperatures at noontime from Monday to Friday is 30; the lowest one is 20, what is the possible maximum range of the temperatures?
Choose the correct answer:
A) 20 B) 25 C) 40 D) 45 E) 10
Average=30, Sum of temperatures=30*5= 
<gadget id="calculator">30*5</gadget>
<output>150</output>
150   As the min temperature is 20, max would be 150-4*20=30 --&gt; The range=30(max)-20(min)=10   Answer: 10
<result>E</result>
The average of temperatures at noontime from Monday to Friday is 30; the lowest one is 20, what is the possible maximum range of the temperatures?