Answer:
Increase in Motel cost = $10 per night for additional bed * 4 day = $10 * 4 = $40
Additional food cost = $150
Therefore, total cost of including Kallie for the trip is $40 + $150 = $190
1. Incremental Analysis
Without K With K Incremental cost
Motel cost $580 $620 $40
Food $300 $450 $150
Gas in total $120 $120 -
Total Incremental cost $1,000 $1,190 $190
It would cost $190 for Kallie to accompany along
2. Cost to Kallie using benefits received method
Particulars Amount
Motel ($580 + 40)/3 $206.67
Food $150
Gas ($120/3) $40
Total $396.67
Thus, cost to Kallie using benefits received method would be $396.67.