Let the length of train be x m. According to the question, => 72 x (5/18) = x/12 => x = 240 m Length of the platform = 240 x (11/6) = 440 m Required time = (240 + 440)/20 = 34 seconds
"Three friends, Aman, Bhuvan, and Chinu, have the following age relationship: Aman's age six years ago was half of Bhuvan's age t...
The present ages of Grandmother and Grandfather are in 6:8 if the ratio of Grandmother age after 8 years and Grandfather age after 4 years becomes 5:7 t...
The total age of A, B and C six years hence will be 89 years. Find the age of C five years hence, if the present age of A and B is 33 years and 24 years...
18 years ago the average age of a family of four members was 45 years. Two children were born in that span of 18 years. The present average age of the f...
Present average of age of A and B is (9x-15) years. Present average age of A, B and C is (6x+5) years. If present age of B is 20% less than the present ...
The current age of 'Aman' is 87.5% greater than 'Bittu's' age. The ratio of Aman's age 3 years hence from now to Bittu's age 6 years hence from now is 8...
The current age of Gina is five times that of Henry. 8 years from now, Gina's age will be twice the age of Ian at that time. If Henry is 3 years younger...
Laxman and his grandmother's current average age is 38 years. Four years from now, Laxman's age will be one-third of his grandmother's current age. Dete...
Mukesh's age is four times his son's age If, after 8 years, Mukesh will be four times his son's age, how many times his son's age will Mukesh be after a...
Tap P can fill the tank in 5 hours and Tap Q can empty it in `7(1/2)` hours. Tap P starts filling and they opened for 1 hour each alternatively....
