If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new numbers is	Select.
A) 30  B) 35  C) 40  D) 50  E) None
Sol.   A.M. of 75 numbers = 35.   Sum of 75 numbers = (75 x 35) = 2625.   Total increase = (75x5) = 375.   Increased sum = (2625 + 375)= 
<gadget id="calculator">(2625 + 375)</gadget>
<output>3_000</output>
3000.   Increased average= 3000 / 75= 
<gadget id="calculator">3000 / 75</gadget>
<output>40</output>
40.   Answer 40
<result>C</result>
If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new numbers is