Bissoy.com
Doctors Medicines MCQs Q&A

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: A 300 m long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform? Quantity B: A train running at 60 kmph crosses a pole in 30 seconds. What is the length of the train?

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: A 300 m long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform? Quantity B: A train running at 60 kmph crosses a pole in 30 seconds. What is the length of the train? Correct Answer Quantity A < Quantity B

Quantity A: 

It is given that, 300 m long train crosses a signal pole in 18 seconds

We know that, Speed = Distance/time

Speed of train = 300/18 = 50/3 m/s

It is also given that, same train crosses a platform in 39 seconds

Let the length of the platform be x meters

Also, Distance = Speed × Time

⇒ x + 300 = 50/3 × 39

⇒ (x + 300) = 650

∴ x = 350 m

Quantity B: 

As compared with length of the train, length of the pole is negligible

We know that speed = distance/time

Speed = 60 kmph = 60 × (5/18)m/s = 16.67 m/s

⇒ Length of train = 16.67 × 30 = 500 m

∴ Length of the train = 500 m

∴ Quantity A < Quantity B

Related Questions

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 160 m long train crosses a 200 m long platform in 18 seconds. What is the speed of the train? Quantity B: A train completes its journey of 500 km running equal distance at speeds of 60 km/hr. and 90 km/hr. What is the average speed of the train in its journey?
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 chose the correct option. Quantity A: A train is running from Jaipur to Jammu at 8:00 am at the speed of 40 km/hr and another train is running from Jammu to Jaipur at 9:00 am at the speed of 60 km/hr. If the distance between Jaipur and Jammu is 640 km then find the distance from Jaipur when they meet? Quantity B: Shatabdi Express is running from Delhi to Kanpur at 7:00 am at the speed of 80 km/hr and Rajdhani Express is running after 2 hours of shatabdi express at the speed of 120 km/hr. Find out the distance from Delhi when they meet?
A train with uniform speed crosses a 162m long platform in 36 seconds and another platform 120 m long in 30 seconds. Which of the following statements are correct A. As the length of the platform is changing, the time taken to cover the distance will also change.  B. Speed of the train is 7 m/seconds. C. The length of the train is more than the length of platform 1. D. Train is 90 meters long. E. Length of both the platforms to be added to find the length of the train. Choose the correct options given below.
Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answer. The length of the first train is 40% more than the length of the second train. Time taken by the first train to cross a 200 m long platform when the second train crosses a person standing on the same platform in 25 sec. If the speed of both trains is 60 km/h and 36 km/h respectively. Quantity A: Numerical value of the time taken by the first train to cross the platform (in seconds) Quantity B: Numerical value of the length of the second train (in Km).
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: 20% of students prefer to speak both English and Hindi while 40% of students prefer to speak Hindi and 55% of students prefer to speak English. 1300 students don’t prefer to speak both English and Hindi. Find the difference between the number of students who speak only English and only Hindi. Quantity B: 10 men can complete the work in 20 days while 30 women can complete the work in 40 days. If 8 men and 30 women started the work and they work for 8 days then left the work. The remaining work will be completed by a certain number of women in 57.6 days. Find the number of women who completed the remaining work.
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 chose the correct option. Quantity A: During a journey of 100 km, a bus covers first 60 km with a speed of 45 kmph and the remaining distance with a speed of 30 kmph. The average speed of the bus during the whole journey is... Quantity B: A motorcycle rider 250 km distance of uphill in 5 hr and in return he cover the same distance downhill in 3 hr. The average speed of the rider over the journey is....
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 both the quantities and choose the correct option. Quantity A: A train completes its journey of 500 km running equal distance at speeds of 60 km/hr. and 90 km/hr. What is the average speed of the train in its journey? Quantity B: 81
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: Twelve persons can construct a 320 m long wall in 32 days working 8 hours a day. In how many days can 40 persons construct a 250 m long wall working 10 hours a day? Quantity B: A can finish the work in 15 days and B in 30 days. They both work together for 5 days and then B leaves. How many days will A take to complete the remaining work?
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 I: Pipe P alone can fill the tank in 10 hours while pipe Q alone can fill the tank in 15 hours. Both pipes open alternatively. In how much time tank will get completely filled? Quantity II: 15 hours
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.