The speeds of two trains are in the ratio of 5 : 7. They are going in opposite directions along parallel tracks. If each takes 6 seconds to cross a pole, find the time taken by the trains to cross each other completely?

The speeds of two trains are in the ratio of 5 : 7. They are going in

1.	The speeds of two trains are in the ratio of 5 : 7. They are going in opposite directions along parallel tracks. If each takes 6 seconds to cross a pole, find the time taken by the trains to cross each other completely?
A.	10 sec
B.	6 sec
C.	15 sec
D.	12 sec
Answer» C. 15 sec

Discussion

No Comment Found

Related MCQs

In a mixture 60 litres, the ratio of milk and water 2 : 1. If the this ratio is to be 1 : 2, then the quanity of water to be further added is:
Ravi has only hens and sheep. If the total number of their heads is 48 and the total number of legs is 168. What is the ratio of the number of hens to that of sheep?
In how many different ways can a group of 4 men and 4 women be formed out of 7 men and 8 women?
Instead of dividing $ l117 among P, Q, R in the ratio (1/2) : (1/3) : (1/4), by mistake it was divided in the ratio 2 : 3 : 4. Who gained in the transaction?
The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
The ratio of the first and second class fares between two stations is 4 : 1 and that of the number of passengers traveling by first and second class is 1 : 40. If Rs11000 is collected as fare, the amount collected from first class passengers is:
Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is:
A liter of milk sold by a milkman contains milk and water in the ratio 4 : 1. A house wife adds 100 ml of water and then uses 220 ml of the mixture to make curd. How much of the pure milk is she left with?
The incomes of A and B are in the ratio 3 : 2 and their expenditures in the ratio 5 : 3. If each saves Rs1000, A’s income is:
The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:

The speeds of two trains are in the ratio of 5 : 7. They are going in opposite directions along parallel tracks. If each takes 6 seconds to cross a pole, find the time taken by the trains to cross each other completely?

Discussion

No Comment Found

Related MCQs

Reply to Comment