Question
A train 200 metre long takes 20 sec to cross a man
running at a speed of 4 km/hr in the direction same to that of train. What is the speed of the train?Solution
Let the speed of the train be x Relative speed = (x - 4) km/hr ⇒ (x - 4) = (200 × 18)/(20 × 5) ⇒ (x - 4) = (3600)/(100) ⇒ x – 4 = 36 ⇒ x = 36 + 4 = 40 km/hr
What is the probability of getting two white balls from a box containing only white and blue balls?
Statement I : There are total 72 balls in th...
The current age ratio of Aman to Bheem is 5:6. What is Aman's current age?
Statement I: Bheem's age 18 years from now wil...
How many boys are there in the class?
I. The number of girls is 30% of the number of boys.
II. The ratio of the number of boys to that of girls is 3:5.
In how much time will a train running at a speed of 48 km/hr cross the other train running in opposite direction?
Statement I: The length of the...
What was the profit earned by selling an article?
Statement I: The article was sold for Rs 850 after getting a discount of 15% on the labelled p...
The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements are suffi...
In how much time will a train running with a speed of 72 km/hr cross the second train?
Statement I: The length of the two trains is 80 metres ...
A man invested a sum of Rs 25,000. He invested some part at 5 % p.a. and remaining at 5.5% p.a. How much money did he invest at 5 % p.a.?
Statem...
A factory manufactures three products: X, Y, and Z. What is the total profit generated from these products in a month?
Statements:
I: Th...
In an office, the number of men exceeds the number of women by 13. The average weight of all employees (men and women) is 5 kg hi...