Answer:
a) $10,000
Step-by-step explanation:
The computation of the fixed cost by using high low method is shown below:
Before that first we have to determine the variable cost per direct labor hours which is shown below:
Variable cost per hour = (High Operating cost - low operating cost) ÷ (High labor hours - low labor hours)
= ($100,000 - $70,000) ÷ (15,000 hours - 10,000 hours)
= $30,000 ÷ 5,000 hours
= $6
Now the fixed cost equal to
= High operating cost - (High labor hours × Variable cost per hour)
= $100,000 - (15,000 hours × $6)
= $100,000 - $90,000
= $10,000
hence, the correct option is a . $10,000