Answer:
Step-by-step explanation:
If income increases by 10% that is from $ 50000 to $55000, the demand curve shifts vertically upward by 10% . the horizontal and vertical intercepts for the new demand were are 550 and 550 . the quantity demanded of rooms at triple seven rises from 200 to 250 rooms per night.
Income elasticity of demand = % change in quantity demanded/% change in income= [(250-200)/200]*100/1 0=2.5
The income elasticity of demand is positive which means that the hotel rooms at triple seven is normal good.
If airline fare increases by 20% that is from $ 250 to $300, the demand curve shifts vertically downward by 20% . the horizontal and vertical intercepts for the new demand were are 400 and 400 . the quantity demanded of rooms at triple seven rises from 200 to 1O0 rooms per night.
Cross price elasticity of demand = % change in quantity demanded of hotel rooms/% change in airfare = [200-100)/200]*100/1 0=5
The cross price elasticity of demand is positive which means that the hotel rooms at triple seven and airfare to roundtrip are complements.
If price is decreased from $300 to $275, Total revenue will increase.
Total revenue before price decrease= 300 *150=45000
Total revenue after price increase= 275*175 =48125
Thus total revenue increases. This will always be the case if triple sevens is operating at the elastic portion i.e upper half of demand curve.