Comprehensive Numerical Questions

The cost accountant for Ray Lighting Manufacturing Company is planning production costs for a new lamp. Production of the new lamp will be subject to a $60\%$ learning curve since it involves only minimal adjustments to established processes. The initial lot of $500$ lamps is expected to require $1,000$ hours of labour. Costs are as follows:

Direct Labour $20$ hour

Direct Materials $150/$lot of $500$

Variable OH Applied $25/$Direct labour hour

What is the estimated cumulative average time per unit after $8$ lots have been manufactured, if the e leaming model is used?