With a uniform speed , a car covers a distance in 8 hours . Had the same distance could have been increased by 4 km/hr. The same distance could have been covered in 7 hours and 30 minutes. What is the distance covered?

A 420 km
B 480 km
C 520 km
D 640 km

Correct Answer: 480 km

Correct option is B)Let the distance be x Km. Then,x/2/5-x/8​=4                                                ∴x=480km.
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Related Questions

Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient .Car X traveled from city A to city B in 30 minutes.What was the average speed of car X? (1) Half the distance of the trip was covered at 50 miles per hour, and the other half of the distance was covered at 60 miles per hour.(2) Car X traveled 30 miles during the trip.
A A
B B
C C
D D
John, Jack, Joseph and Jordan participated in a running race. Only the winner finished the race in 10 minutes. Which two pieces of information can tell you who the winner was? (i) John finished the race in 16 minutes . (ii) Joseph finished the race earlier than Jack by 2 minutes. (iii) Jack finished the race later than Jordan by 4 minutes. (iv) Jordan finished the race earlier than John by 6 minutes. (v) John finished the race later than Joseph by minutes.
A I and II
B I and IV
C II and III
D II and V
A car going 40 miles per hour set up on an 80 miles trip at 9.00 A.M. Exactly 10 minutes latter, a second car left from the same place and followed the same route, How far in miles per hour, was the second car going if it caught up with the first car at 10:30 A.M.?
A 45
B 50
C 53
D 55
গাড়ি A সোজা রাস্তায় 60 km/hr সমবেগে চলছে । অন্য একটি গাড়ি B একই পথে 70 km/hr সমবেগে A গাড়িটিকে অনুসরণ করছে । যখন গাড়ি দুইটির মধ্যকার দূরত্ব 2.5 km হয় তখন B গাড়িটির গতিবেগ 20 kmhr-2 হারে হ্রাস পেতে থাকে । কত দূরত্ব ও সময় পরে B গাড়িটি A গাড়িটিকে ধরতে পারবে
A 37.5 km and 0.25 hr
B 32.5 km and 0.50 hr
C 30 km and 0.50 hr
D 60 km and 0.25 hr
একটি মোটর গাড়ির হর্ণ দিয়ে 100 Hz কম্পাঙ্কের শব্দ উৎপন্ন করতে করতে একজন স্থির পর্যবেক্ষকের নিকট হতে একটি স্থির দেয়ালের দিকে 36 kmhr-1 বেগে চলছে। পর্যবেক্ষক প্রতি সেকেন্ডে কতগুলো স্বরকম্প গুনতে পাবে? [ বাতাসে শব্দের বেগ =332 ms-1 ]
A 3
B 7
C 6
D 8
Jamal covered a distance of 340 miles between ciry A and B taking a total of 5 hours. If part of the distance was covered at 60 miles per hours speed and the balance at 80 miles per hour speed, how many hours didhe travel at 60 miles per hour?
A 2
B 2.5
C 3
D None
The respective ratio between the speed of a speed of the car, bus and train is 5 : 9 : 6. The average speed of the car, bus and train is 72 km/hr together. What is the average speed (km/h)of the car and the train together?
A 82
B 72
C 67
D 84
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A 9.30 A.M.
B 9.42 A.M.
C 10.00 A.M.
D 11.00 A.M.
It takes Russel 20 minutes to inspect a car and Sohel needs 18 minutes to inspect a car. They both start inspecting cars separately at 10:00 am. At certain points of time, both of them will finish inspecting a car at the same time. When will this occur for the first time?
A 11 : 30 am
B 11 : 42 am
C 12 : 00 pm
D 1 : 00 pm
It takes Eric 20 minutes to inspect a car. John only needs 18 minutes to inspect a car. If they both start inspecting care at 8:00 am, what is the first time they will finish inspecting a car at the same time?
A 9
B 10
C 11 am
D 2 pm

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