Concept:
To put in ratio the values must be of the same unit / same type
Here, jumps will be either for the A or the B.
∴ speed ∝ distance
Solution:
7 jumps of A→ 5 jumps of B
8 jumps of the A → jumps of the B
= jumps of B
∴The required ratio is
= 20 : 21
∴ The ratio of the speed of A and B is 20 : 21.
English
80 Questions
160 Marks
60 Mins English English80 Questions160 Marks60 Mins English English20 Questions40 Marks25 Mins EnglishWhat time it will be 25200 seconds after 1pm?
Sudha and Kavitha start moving on a bicycle towards each other at 5 am with the speeds of 14 kmph and 16 kmph respectively. They were 45 km apart at the starting point for both. At what time would they meet?
A man walks to a viewpoint and returns to the starting point by his car maintaining a constant speed and thus, takes a total time of 4 hours 45 minutes. He would have gained 2 hours by driving both ways. How long would it have taken for him to walk both ways with the same walking speed?
A 145 m long train crosses a man walking at a speed of 9.5 km/h in the opposite direction in 30 seconds. What is the speed (in km/h) of the train ?
A bus cover 320 km distance in 5 hours, and speed of a car 3/8 of the speed of bus. Find the ratio of distance cover by bus in 6 hours to distance cover by car in five hours?
Two cars A and B started from point X & Y respectively, and the distance between these two points is 660 km. Both cars started at 10 AM and meet at 3 PM. If speed of car A is 12 km/hr more than that of B, then find the speed of car A (in km/hr)?
From a taxi stand, two cabs start at a speed of 74 km/hr at an interval of 28 minutes, both cabs travelling in the same direction. A man coming in the opposite direction towards the taxi stand meets the cabs at an interval of 10 minutes. Find the speed (in km/hr) of the man.
On a circular path of 2742 m, Riya and Trisha start walking from the same point but in opposite directions at the speed of 4.6 m/s and X m/s, respectively. They will meet for the first time after 457 seconds. Find the value of X.
How long does it take for a 200 m long train, moving at a speed of 72 km/h, to completely cross another 300 m long train moving at a speed of 36 km/h in the same direction?
Suggested Test Series
Suggested Test Series
What time it will be 25200 seconds after 1pm?
Sudha and Kavitha start moving on a bicycle towards each other at 5 am with the speeds of 14 kmph and 16 kmph respectively. They were 45 km apart at the starting point for both. At what time would they meet?
A man walks to a viewpoint and returns to the starting point by his car maintaining a constant speed and thus, takes a total time of 4 hours 45 minutes. He would have gained 2 hours by driving both ways. How long would it have taken for him to walk both ways with the same walking speed?
A 145 m long train crosses a man walking at a speed of 9.5 km/h in the opposite direction in 30 seconds. What is the speed (in km/h) of the train ?
A bus cover 320 km distance in 5 hours, and speed of a car 3/8 of the speed of bus. Find the ratio of distance cover by bus in 6 hours to distance cover by car in five hours?
Two cars A and B started from point X & Y respectively, and the distance between these two points is 660 km. Both cars started at 10 AM and meet at 3 PM. If speed of car A is 12 km/hr more than that of B, then find the speed of car A (in km/hr)?
From a taxi stand, two cabs start at a speed of 74 km/hr at an interval of 28 minutes, both cabs travelling in the same direction. A man coming in the opposite direction towards the taxi stand meets the cabs at an interval of 10 minutes. Find the speed (in km/hr) of the man.
On a circular path of 2742 m, Riya and Trisha start walking from the same point but in opposite directions at the speed of 4.6 m/s and X m/s, respectively. They will meet for the first time after 457 seconds. Find the value of X.
How long does it take for a 200 m long train, moving at a speed of 72 km/h, to completely cross another 300 m long train moving at a speed of 36 km/h in the same direction?
