Question
A train can normally cover 200 metres in 8 seconds. How
much distance (in km) can the train cover in 3 hours if it travels at 150% of its normal speed?Solution
ATQ,
Normal speed of the train = 200/8 = 25 m/s
150% of normal speed of the train = 25 × 1.5 = 37.5 m/s = 37.5 × 3.6 = 135 km/h
So, distance travelled in 3 hours = 135 × 3 = 405 km
What was the age of Sonu 10 years ago?
I. Ram is seven years older than Sonu.
II. The ratio of Ram’s present age to Sonu’s is 5:4...
Calculate the total time it takes for a ship to cover a distance of 120 km downstream and 80 km upstream.
Statement I: The ship can travel 1300 ...
What is Jackson’s annual income?
Statement I. Jackson’s monthly income is Rs. 17500 more than Annie’s ...
Find length of the metro?
Statement I : If metro can cross a platform in 40 seconds and a pole in 24 seconds.
Statement II : If the spee...
What is the time taken by train to go from Station A to Station B?
Statement I:Â If the train increases its speed by 20%, then it reaches 40 mi...
What is the speed of boat in still water?
Statement I: The boat can cover 24 km downstream distance in 4 hours.
Statement II : Speed of ...
A box contains red and blue marbles. What is the ratio of red marbles to blue marbles in the box?
Statements I: Â The number of red marbles is 4...
By selling a product for Rs.520 how much profit was earned?
I. 12% discount on the market price.
II. The profit was one- third of the cost price.
What is the speed of boat in still water?
Statement I: The boat can cover 16 km downstream distance in 2 hours.
Statement II: Speed of t...
What is the smallest number of the six numbers? Â
I.The average of six consecutive odd numbers is 8. Â
II. The sum of six consecutive od...
