The average of 30 numbers is 25. If each number is multiplied by 5, find the new average?  Choose one.
A) 115  B) 125  C) 135  D) 145  E) 155
Sum of the 30 numbers = 30 * 25= 
<gadget id="calculator">30 * 25</gadget>
<output>750</output>
750   If each number is multiplied by 5, the sum also gets multiplied by 5 and the average also gets multiplied by 5.   Thus, the new average= 25 * 5= 
<gadget id="calculator">25 * 5</gadget>
<output>125</output>
125.   ANSWER:125
<result>B</result>
The average of 30 numbers is 25. If each number is multiplied by 5, find the new average?