Originally Posted by MasterOfPuppets

yes because now you have made Bs $20 so the price of an A which is better should be increased. You doubled the B so that make an A now worth $40.

Unless of course the extra $10 for a B was performance based bonus. Then of course you would have to even out the bonus to the A. In all cases an A should be compensated more than a B.

If you do not increase the A then you will maintain a B average because its easier. Why put in the extra effort.