Bissoy.com
Doctors Medicines MCQs Q&A

Sumit starts his journey from point Q at 1 p.m. He drives the car at the speed of 48 km/hr for first three hours and complete the remaining journey at the speed of 36 km/hr. If Rahul starts moving towards Sumit at 6 p.m. from point Q at the speed of 51 km/hr, then at what time he will catch Sumit ?

Sumit starts his journey from point Q at 1 p.m. He drives the car at the speed of 48 km/hr for first three hours and complete the remaining journey at the speed of 36 km/hr. If Rahul starts moving towards Sumit at 6 p.m. from point Q at the speed of 51 km/hr, then at what time he will catch Sumit ? Correct Answer 8 : 24 am

Given: 

Sumit travels at speed for 1st 3 hours is 48 km/hr 

Rahul moving is 51 km/hr 

Formula Used: 

Distance = Speed × Time

Calculation:

Distance travel by sumit till 6 pm = 3 × 48 + 2 × 36 = 216 km 

Distance = Relative speed × time 

⇒ 216 = (51 - 36) × Time 

⇒ Time = 216/15 = 72/5 = 14 hr 24 minutes 

So Rahul catch Sumit in 14hr 24 minutes after 6 PM 

Then, Actual time = 8 : 24 am

∴ Rahul catch Sumit at 8 : 24 am.

Related Questions

Three cars start from point A together and reach point B at equal intervals. Second car whose sped is less than third car but more than first car taken a u turn and starts its journey towards A whereas third car heads for point C which is 100 km away from point B. First car and third car meet each other at mid way of A and C after third car takes u turn from C. First car travels half the distance between A and B when second reaches B. The sum of speed of second car and third car is 100 kmh.  What is the difference between speed of third car and first 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.
Kripal starts driving from his home and drives 37 km towards south. From there he turns left and drives 31 km. Then he turns right and drives 27 km. Then he turns left and drives a certain distance of Y km. After than, he turns left and drives 57 km. Now he finally turn left and drives 58 km to reach a bank, which is exactly 7 km south of his home. Find the value of Y in Km.
Sumit stays in Noida in a joint family comprising of his parents, uncle, aunt, an elder sister and a cousin two years younger than him. Sumit completed his MBA in 2013, from a reputed B-School. That year, the average age of Sumit's family was 41. Sumit got married in 2015 and two years after he became father. If the average age of Sumit's family in 2019 remains same as in 2013, and Sumit is older than his wife by 3 years, at what age did Sumit graduate MBA?
If Rati travels at his usual speed for ‘x’ hours, he covers the same distance as he covered when he travels at a speed 30 km/hr less than usual, but for (x + 3) hours. Which of the following can be determined? (A) If he travels at 20 km/hr less speed than usual, he can cover a distance of 240 km in (x - 1) hours. What is the value of ‘x’? (B) If travels at his usual speed for (t + 2) hours, and at 50% of his usual speed for (t - 2) hours, his average speed for the journey is 68 km/hr. What is his usual speed? (C) His usual speed (in km/hr) is a multiple of 5 between 40 and 50 (both inclusive). If ‘x’ is a whole number, what is his usual speed? (D) If he travels at his usual speed for ‘t’ hours, he covers a distance of 400 km. What is the value of ‘x’?
To reach office from his home, Ram drives a car towards North with a speed of 40 km/ hr for 30 minutes and takes a left turn and drives for one hour (due to heavy traffic, the speed reduced to 30 km/hr). Then he takes left and drives for 10 minutes at the speed of 60 km/hr and then he takes left and drives for 2 hour at the speed of 15 km/ hr. how far his office from his home is?
In a group, there are six girls P, Q, R, S, T and U. Each of them drives one car among C1, C2, C3, C4, C5 and C6. None of them drives the same car. P doesn’t drive an even-numbered car. S drives C4. Car C5 is driven by either R or U. Q drives C1. Car C2 is not driven by T. Which cars are driven by P and T respectively?
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  
Rahul and Rohit are two men and Riya is a woman are entrusted with a task. Rohit needs 3 hours more to chop with the job than Rahul and Riya working together. Rahul, working alone would need as much time as the Rohit and Riya together. Rahul, working alone would spend 8 hours less than the double period of time Rohit would spend working alone. How much time Rahul, Rohit and Riya need to complete the task if they all work together?
Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador. Question : How many people live between the floors on which D and the one having a car Bedford ?