There are 20cm, 21cm, 22cm,23cm, 24cm,25cm rods of quantities 2,3,6,4,3,2 respectively. Find average of this data.  Pick
A) 32.25
B) 21.45
C) 45
D) 22.45
E) 22
Average = ( 20*2+21*3+22*6+23*4+24*3+25*2 )/20= 
<gadget id="calculator">( 20*2+21*3+22*6+23*4+24*3+25*2 )/20</gadget>
<output>449/20 = around 22.45</output>
22.45 Answer : 22.45
<result>D</result>
There are 20cm, 21cm, 22cm,23cm, 24cm,25cm rods of quantities 2,3,6,4,3,2 respectively. Find average of this data.