Which is cheaper: a 240 gram box of cereal for $3.69, or a 360 gram box of cereal for $4.89?
A 500 km trip by car took 6 hours and 45 minutes. Calculate the average speed of the car in km/h.
The average speed of a car is 75 km/h. At this speed, how many hours will it take to travel 700 km?
For Problems 4 and 5, solve the proportion equations for the unknown value.
a. [latex] 35 : 7 = 60 : x [/latex]
b. [latex] 45 : x = 70 : 63 [/latex]
a. [latex] 25 : 9 = x : 2.7 [/latex]
b. [latex] \displaystyle{x : 8 = 2\frac{1}{4} : 2\frac{1}{2}} [/latex]
The scale on a map is 3 cm = 50 km. Calculate the actual distance between two cities that are 12.75 cm apart on the map.
An investment of $1,500 earned $820 in interest in one year. What amount should be invested at this rate to earn $1,459 in interest?
A car travelled 250 km. If the fuel efficency of the car is 9 litres per 100 km, calculate the amount of gas used for the trip.
Which offer is the best based on the unit price?
75 grams of chocolate for $1.49
100 grams of choclate for $1.99
125 grams of chocolate for $2.25
Andrew's earnings to Bill's was in the ratio of 3 : 5 and Bill's to Cathy's was in the ratio of 4 : 6. What was the ratio of the earnings of Andrew : Bill : Cathy?
For every $25 that a not-for-profit foundation transferred to a relief fund, the government donated $10 towards the same cause. After two months of fundraising, the foundation had a total of $9,450, including the government's contribution. Calculate the amount donated by the government.
Georgia paid a yearly subscription amount of $250 to receive a business magazine monthly. After receiving two issues, she cancelled her subscription. Calculate the pro-rated refund she should receive from the magazine company.
A, B, and C invested $9,000, $15,000, and $12,000 respectively, to start a small business. An additional $6,000 is required for operating the business. How much must each of them invest to mantain their original investment ratio?
Nabil and Mohammad invested a total of $100,000 in the ratio of 3 : 5, respectively. After one year, both of them withdrew $10,000 from the invesment. Calculate the ratio of their investments after the withdrawal.
Profits are distributed to the three partners, Alice, Bill, and Carol, based on their investments of $60,000, $40,000 and $96,000, respectively. If the profit last year was $58,800, calculate their share of the profits.
Anil wants to convert US$2,250 to Canadian dollars. If the exchange rate is C$1 = US$0.7495 and the bank's commission rate is 0.75%, how many Canadian dollars will he receive?
A bank has a buying rate of £1 = C$1.65. If the exchange rate is £1 = C$1.6435, calculate the rate of commision that the bank charges to buy British pounds.