Question
The HCF and the LCM of two numbers are 5 and 175,
respectively. If the ratio of the two numbers is 5:7, the larger of the two numbers is _______.Solution
HCF = 5 LCM = 175 Ratio = 5:7 Let the numbers be 5x and 7x. Using the relation HCF × LCM = Product of the two numbers: 5 x 175 =5x × 7x 875 = 35x2 x2=875/35 =25 x=5 Larger number = 7x=7x5= 35.
The time taken by train B to cross a platform of 120 metres is 3 sec less than the time taken by train A to cross the same platform. The sum of length o...
A 300 m long train crosses a platform twice its length in 3 min. Find the speed of the train.
- Train 'P' can cross a pole in 8 seconds and a 160 metres long bridge in 12 seconds. Train 'Q' whose length is 60% of the length of train 'P' runs in the sa...
- Passenger train leaves Bhopal at a certain time. After 3 hours, Intercity Express leaves the same station and travels in the same direction at the speed of...
Length of a train, whose speed is 45 km/h, is 225 metres. Find the time taken (in seconds) by train to cross a bridge of length 375 metres.
How many seconds will a train 68 m in length, travelling at the rate of 40 km an hour, take to pass another train 92 m long, proceeding in the same dire...
A train 200 m long crosses a pole in 10 sec and a platform in 25 sec. Find the platform’s length.
Two trains approach each other at 21 kmph and 25 kmph from 2 places 230 km apart. After how many hours they will meet?
Car 'X' travels for 4 hours to reach from point A to B. Car 'Y' travels 210 km to reach from point B to C in 3 hours. Distance travelled by car 'X' to c...
Train ‘A’ running with a speed of 45 km/h crosses a pole in 4 seconds. If the time taken by train ‘A’ to cross train ‘B’ running with a spee...
