Thus , any values of r between 0 and 1 that satisfy b should make toy trains profitable. However , this goal may not be achievable because it requires practically impossible reductions in the times of operation 1 and 2. For example , even reductions as high as 50% in these times (that is r=i) fail satisfy the given condition. Thus , TOYCO should not produce toy trains unless an increase in its unit price is possible.