Cost price = 6,500
Selling price + profit = 9500
Profit gained = 9,500 - 6,500 = $3000
Number of tires bought = 3000/50 = 60
The dealer bought 60 tires.
<span>Science, inventions in machinery and experimentation in seed have added millions of hectares to wheat farming in the low rainfall areas. ... Merino sheep and drought-resistant strains of crops led to two of the most common forms of agriculture in Australia – wheat and sheep farming.</span>
Assuming the costs are normally distributed, then Z = (X-mu)/sigma
For piano Z= (3000-4000)/2500 = -0.4
For guitar Z= (550-500)/200 = 0.25
For drums set Z= (600-700)/100 = -1
Drums set < Piano < Guitar
Drums cost is lowest when compared to the instruments of same type
.
Guitar cost is highest when compared to the instruments of same type.
