Bissoy.com
Doctors Medicines MCQs Q&A

If car A can travel 31 km 312 m 50 cm in 1 hr 15 min 9 sec and car B can travel 63 km 150 m in 2 hrs 6 min 18 sec, what will be the relative speed of car B with respect to car A(in km/hr) if car A is chasing car B?

If car A can travel 31 km 312 m 50 cm in 1 hr 15 min 9 sec and car B can travel 63 km 150 m in 2 hrs 6 min 18 sec, what will be the relative speed of car B with respect to car A(in km/hr) if car A is chasing car B? Correct Answer 5

Speed of car A = Distance covered by car A/Time taken

= 31 km 312 m 50 cm/1 hr 15 min 9 sec

= 31.3125 km/1.2525 hr

= 25 km/hr

Speed of B = 63 km 150 m/2 hrs 6 min 18 sec

= 63.15/2.105 = 30 km/hr

Relative Speed of Car B with respect to Car A = 30 - 25 = 5 km/hr

Related Questions

The parking rates of car in a railway station parking are depicted as follows: (a) Up to 2 hrs – Rs. 50 (b) More than 2 hrs and up to 5 hrs – Rs. 75 (c) After 5 hrs – Rs. 10 per extra hour up to 8 hrs. (d) More than 8 hrs and up to 12 hrs – Rs. 150 (e) More than 12 hrs and up to 24 hrs – Rs. 250 Rajeev parks his car at 7.00 a.m. and comes back to pick it up at 4.30 p.m. on the same day. How much money does he have to pay?
The rate of waiting room per hour is depicted as follows, (a) Up to 2 hrs – Rs. 150 (b) More than 2 hrs and up to 5 hrs – Rs. 275 (c) After 5 hrs – Rs. 50 per extra hour up to 8 hrs. (d) More than 8 hrs and up to 12 hrs – Rs. 450 (e) More than 12 hrs and up to 24 hrs – Rs. 600 Rohan comes to the waiting room on Monday at 7:00 p.m. and takes leave from it on Tuesday at 5:45 p.m. in the same week. How much money does he have to pay?
Monica takes 9 hrs 15 minutes in walking a distance and riding back to the same place where she started. She could walk both ways in 11 hrs 12 minutes. The time taken by her to ride back both ways is: A. 7 hrs 18 min B. 7 hrs 35 min C. 7 hrs 45 min D. 7 hrs 15 min
In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: A boat takes 1 hr. 4 min. to travel from the shore to a pole and return back, when the speed of the stream is 4 km/hr. If the boat can travel at a speed of 16 km/hr in still water, find the distance between the shore and the pole. Quantity B: A boat takes 45 min. to travel ‘x’ km downstream and 1 hr. 30 min. to return back. If the boat can travel (x + 2) km in still water in 1 hr. 12 min., find the value of x.
Compare the values of the two quantities in the question and answer. Quantity 1: A boat takes 3 hrs. 20 min. to travel 40 km upstream and 2 hrs.40 min. to travel the same distance in still water. How much time will it take to cover the same distance downstream? Quantity 2: The downstream speed of a boat is 22 km/hr and upstream speed is 17 km/hr. How much time will it take to travel 45 km in still water?
The velocity of a car increases uniformly from 18 kmhr-1 to 72 kmhr-1 in 10 s. Calculate the acceleration of the car.
Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. If the bus is travelling from Surat to Ahmadabad and a car is travelling from Ahmadabad to Surat, then what is the distance between Surat and Ahmadabad? I. The speed of a car is 40% less than the speed of bus. Bus started at 9 am and car started at 10 am and they meet at 3 pm of the same day. II. After travelling for 1 hour, because of traffic average speed of bus is decreased by 20% and covers distance between Surat to Ahmadabad in 11 hours. Original speed of car is 20% less than original speed of bus and before crossing bus it covered 200 km if starts 1 hour later than bus. After crossing car, bus covers remaining distance in 5 hours. III. Speed of bus is 10 km/hr more than the speed of car and before crossing car ratio of distances covered bus and car in same time was 5 : 4. Time taken by car to cover the distance between Ahmadabad and Surat is 2 hours 15 minutes more than time taken by bus to cover the same distance.
The question below is followed by three statements I, II, and III. You have to determine whether the data given is sufficient for answering the question. You should use the data and your knowledge of mathematics to choose the best possible answer. A car travels from city P to city Q in T hours with a speed of v km per hour. Distance between cities P and Q is D kilometers. If it increases its speed by 5 kmph it saves some time. Find the actual speed of the car. Statement I: If the car travels from P to Q with its actual speed of v kmph and come back with the speed of v + 5 kmph in 2T – 0.6 hrs Statement II: A bus start form Q at the same time when the car starts from P and the speed of the bus is 50% more than the speed of the car and the bus meets car after covering 60% of the distance Statement III: Distance between PQ is given by D2 – 25D + 200 = 0  
In its journey from station A to D, a train takes 2 hrs. 18 min. between A & B, 3 hrs. 3 min. between B & C and 5 hrs. 39 min. between C & D. If the distance between A & B is 144 km, between B & C is 206 km and between B & D is 476 km, find the average speed of the train in the whole journey.
Pipe A and pipe B can fill a tank in 20 hrs and 30 hrs respectively. Pipe C can empty the full tank in 60 hrs. If all three pipes open simultaneously and work for 5 hrs, then after pipe C is closed, then find in how many hrs the remaining tank will be filled?