The number m is the average (arithmetic mean) of the positive numbers a and b. If m is 75% more than a, then m must be Pick one.
A) 30% less than b B) 42 6/7% less than b C) 50% less than b D) 66 2/3% less than b E) 75% less than b
Say a = 4 (multiple of 4), then m = 4 + 3/4*4= 
<gadget id="calculator">4 + 3/4*4</gadget>
<output>7</output>
7.   m= (a + b)/2;   7 = (4 + b)/2 --&gt; b = 10.   m = 7 is 30% less than b = 10.   30% less than bnswer: 30% less than b.
<result>A</result>
The number m is the average (arithmetic mean) of the positive numbers a and b. If m is 75% more than a, then m must be