Bissoy.com
Doctors Medicines MCQs Q&A

Mohan starts from a point A at 5 : 00 am at the speed of 20 km per hour and from the same point other Rohan starts at 8 : 00 am at the speed of 60 km per hour.  Quantity I: If both meet each other at other point C and return immediately towards point A. How much total time the Mohan will take go and return immediately to the point A? Quantity II: 9 hours 

Mohan starts from a point A at 5 : 00 am at the speed of 20 km per hour and from the same point other Rohan starts at 8 : 00 am at the speed of 60 km per hour.  Quantity I: If both meet each other at other point C and return immediately towards point A. How much total time the Mohan will take go and return immediately to the point A? Quantity II: 9 hours  Correct Answer Quantity 1 = Quantity 2

Given:

Speed of mohan = 20 km/hr initially

Speed of rohan = 60 km/hr

Formula used:

Distance = speed × time 

Calculation:

The distance travelled by Mohan in first 3 hours = 3 × 20 = 60 km 

⇒ the relative speed of X and Y = 60 – 20 = 40 km per hour 

⇒ 60 = 40 × y 

⇒ y = 1.5 hours 

⇒ It means after 1.5 hours the Rohan meets Mohan. 

Quantity I:

The total time taken by A to go and return immediately = 3 + 1.5 + 3 + 1.5

⇒ Total time taken = 9 hours 

Quantity II: 9 hours

∴ Quantity I = Quantity II

Related Questions

Given below are quantities named A,B and C. Based on the given information, you have to determine the relation between the quantities. You should use the given data and your knowledge of mathematics to choose among the possible answer. Quantity A: Tap1 and Tap2 can fill the tank in 16 hours and 25 hours respectively. Both the taps opened together. After some time Tap 1 is closed and after that the tank is filled in 12 hours. In how many hour Tap 1 and 2 work together? Quantity B: Three taps 1, 2, 3 can fill a cistern in 10,14,18 hours respectively. If tap 1 is kept open all the time and tap 2 and 3 is opened alternatively for an hour then find in how many hours the tank will be filled? Quantity C: Two taps 1 and 2 are such that tap 1 fills the tank in 10 hours and tap2 empties it in 20 hours. If tap 1 is opened first and after 5 hours tap 1 is closed and tap 2 is opened, then the tank emptied in x hours and find the value of x?
Car A starts its journey from P to Q simultaneously another car Y starts from point Q to P and both reach their destination in 3 hours. Car A travels with a speed of 50 km/hr for first hour, 60 km/hr for second hour and 70 km/hr for third hour. Car B travels with 70 km/hr in first hour, 40 km/hr in second hour and 70 km/hr in third hour. After how much time they will meet, if they both start at the same time?
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.
Two places are X km apart. Two boats start from each place at the same time towards each other. One is going upstream and another downstream. The speeds of two boats are 12 km/hr and 15 km/hr. Both the boats meet after 4 hours. From the given statement which of the following can be determined? A. Speed of the current. B. Value of X. C. If both the boats travel upstream (Faster boat is behind the slower one) then after how much time will they meet? D. If both the boats travel downstream (Faster boat is behind the slower one) then after how much time will they meet?
In the following question, two statements are numbered as A and B. On solving these statements, we get quantities A and B respectively. Solve both quantities and choose the correct option. Quantity A: Pipe A takes thrice the time taken by Pipe B to fill a tank. Together they can fill the tank in 15 hours, tank A and B is opened together for 4 hours and then Pipe A is closed and after 2 more hours Pipe B is closed and an outlet Pipe C is opened which when working alone can empty the tank in 10 hours. Calculate the time taken by C to empty the tank. Quantity B: A pipe A can fill the tank in 10 hours another pipe B can fill the tank in 15 hours and with the help of third pipe C they can fill the tank in 5 hours. Pipe A is opened for 4 hours then it is closed, pipe B is closed 3 hours before filling of tank and tank C is opened the whole time. Calculate the time taken to fill the tank
In the following question, two statements are numbered as A and B. On solving these statements, we get quantities A and B respectively. Solve both quantities and choose the correct option. Quantity A: Pipe A takes thrice the time taken by Pipe B to fill a tank. Together they can fill the tank in 15 hours, tank A and B is opened together for 4 hours and then Pipe A is closed and after 2 more hours Pipe B is closed and an outlet Pipe C is opened which when working alone can empty the tank in 10 hours. Calculate the time taken by C to empty the tank. Quantity B: A pipe A can fill the tank in 10 hours another pipe B can fill the tank in 15 hours and with the help of third pipe C they can fill the tank in 5 hours. Pipe A is opened for 4 hours then it is closed, pipe B is closed 3 hours before filling of tank and tank C is opened the whole time. Calculate the time taken to fill the tank.
In the following question, two statements are numbered as A and B. On solving these statements, we get quantities A and B respectively. Solve both quantities and choose the correct option. Quantity A: Superman and Batman in their boat are moving towards each other If Superman travel against the stream and Batman along the stream they are at a distance of 2300 km from each other. If the Speed of Stream is 20 km/h and Speed of Superman’s Boat is 100 km/h and Speed of Batman’s Boat is 130 km/h. Find the Time Taken to meet each other Quantity B: Tony Stark is flying in his suit 1 hour before Captain America with the speed of 200 km/h. If Captain America is chasing him in the boat which runs at a speed of 270 km/h against a stream which has speed of 20 km/h. Find the time in which he catches the Tony Stark.
A person X from a place A and another person Y from a place B set out at the same time to walk towards each other. The places are separated by a distance of 15 km. X walks with a uniform speed of 1.5 km / hr and Y walks with a uniform speed of 1 km / hr in the first hour, with a uniform speed of 1.25 km / hr in the second hour and with a uniform speed of 1.5 km / hr in the third hour and so on. Which of the following is / are correct? 1. They take 5 hours to meet. 2. They meet midway between A and B. Select the correct answer using the code given below:
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’?
Divide Rs. 2100 among Mohan, Rohan, Rohit and Mohit so that Mohan and Rohan get twice as much as Rohit and Mohit together. Rohit gets 4 times what Rohan gets 1.5 times the share of Mohit. How much money does Rohit get?