the sum of two numbers is 15 and their geometric mean is 20% lower than arithmetic mean . find the numbers .
Answers:
A) 11,4
B) 12,3
C) 9,6
D) 3,2
E) 2,1
let a and b are two numbers   so a+b=15 ....(1)   now GM=AM*80/100   or, sqrt(ab)=[(a+b)/2]*80/100   squaring both sides...and after that putting the value of (a+b)...we get.....   ab=36 now go through from option then we get  12*3= 
<gadget id="calculator"> 12*3</gadget>
<output>36</output>
36   ANSWER:12,3
<result>B</result>
the sum of two numbers is 15 and their geometric mean is 20% lower than arithmetic mean . find the numbers .