Related Questions

A man travels 100 miles at 20 miles per hour, 60 miles at 30 miles per hour and 80 miles at 10 miles per hour, what is his average rate for the three trips?
A 18 miles per hr
B 17 miles per hr
C 20 miles per hr
D 16 miles per hr
when a truck travels at 60 miles per hour, it uses 30 percent more gasoline to travel andy distance than it does when it travels at 50 miles per hour. The truck can travel 20 miles on a gallon of gas if it is travelling at 50 miles per hour. The truck has only 10 gallons of gas and is 160 miles from its destination. It takes 20 minutes for the truck to stop for gas . How long will it take the truck to reach its final destination if it is driven at 60 miles per hour?
A 160 minutes
B 180 minutes
C 190 minutes
D 192 minutes
A car goes 15 miles on a gallon of octane when it is driven at 50 miles per hour. When the car is driven at 60 miles per hour, it only goes 80% as far. How many gallons of octane is needed to travel 200 miles if half the distance is traveled at 50 miles per hour and the rest at 60 miles per hour?
A 13.33
B 16.67
C 10.6
D 15
On a trip of 200 miles, a man travels at the rate of 40 miles per hour for the first 100 miles. For the rest of the trip, he travels at the rate of 55 miles per hour . What is his average speed, in miles per hour, for the total trip ?
A 400/9
B 200/9
C 90
D 50
Aslam drove west 10 miles, south 5 miles, west 30 miles and north 35 miles to avoid paying a toll on a direct road. What is the length of the toll road in miles?
A 30
B 45
C 50
D 70
Amer is working in an insurance company as traveling salesman. He drove 373.5 miles on Monday, 481.6 miles on Tuesday, 392.8 miles on Wednesday, 502 miles on Thursday and 53.7 miles on Friday . What is his average traveling?
A 351.8 miles
B 360.72 miles
C 413.6 miles
D 286.9 miles
To avoid paying toli on a direct road. I drive west 10 miles, south 5 miles, west 30 miles and north 35 miles. What is the length of the toli -road in miles?
A 30
B 45
C 50
D 70
The distance from district X to district Y is fifty miles. District Z is sixty miles from district Y. Which of the following could be the distance form district X to district Z? i. 110 miles, ii. 10 miles, iii. 70 miles.
A i only
B ii only
C ii and iii only
D i, ii or iii
A car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
A 64
B 36
C 12
D 29
A car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when drives on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
A 64
B 36
C 12
D 29

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