Question
1200 metres long train crosses a man who is moving in
the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 20 seconds with the same speed, then find the speed of the man.Solution
Speed of train = 1200/20 = 60 m/sec Let the speed of the man be ‘s’ m/sec Relative speed of the train = (60 – s) m/sec According to the question, (60 – s) = 1200/30 Or, s = 60 – 40 = 20 Therefore, speed of the man = 20 m/sec
The LCM of two numbers is 4 times of their HCF. The sum of LCM and HCF is 350. If one of the number is 200, then the other number is:
The ratio of two number is 13 : 10 and their HCF is 25. then find out their LCM?
- The sum and difference of L.C.M and H.C.F of two numbers is 216 and 184. If one of the numbers is 25, then find the other number.
Find the LCM of the numbers 1.2, 0.8, 2.4, and 3.6.
The LCM of the two numbers is 27 times their HCF, and the difference between the LCM and HCF is 416. If the numbers are in the ratio 4: 7, then find the...
If total number of factors of 1,575 is 'x', then find the value of (x - 3) (x + 9).
The greatest number of four digits which when divided by 8, 10, 12 leave remainders 5, 7, 9 respectively is:
LCM of two numbers is 12 times their HCF. The product of the numbers is 25920. What will be the maximum possible difference between the numbers?
The product of two numbers is 3600 and their HCF is 6. Total number of such pairs of numbers is?  Â
The LCM of two numbers is 3600 while their HCF is 60. If one of the numbers is 600, then the other number is:
Relevant for Exams:
