Let the length of train be x m. According to the question, => 90 x (5/18) = x/16 => x = 400 m Length of the platform = 400 x (13/8) = 650 m {Speed conversion = 90km/hr = 90 × (5/18)m/s = 25 m/s} Required time = (400 + 650)/25 = 42 seconds
If A can complete a job in 15 days and B can complete the same job in 10 days, and they work together for 4 days before A leaves. How many more days wil...
Nikhil and Rohit together can complete a job in 105 days 8 minutes, while Rohit and Suresh together can finish the same job in 70 days 5 minutes. If Sur...
A can complete a work in 15 days. B takes 5 days less than A to complete the same work. In how many days can both of them together complete 60% of the w...
A group of 3 men and 5 women can finish a task in 12 days, while another group of 5 men and 3 women can complete the same task in 9 days. If one man an...
P alone can finish a piece of work ‘M’ in 6 days while Q takes 3 days to finish it alone. P, Q and R working together can finish the work &l...
P, Q and R take 18, 15 and 10 days respectively to complete a job. Compare their efficiencies as a ratio.
Anil and Ashish receive Rs.2000 for work of 8 days. If Anil is 4 times efficient than Ashish, then find the daily wage received by Ashish.
Amit and Chetan can complete a task individually in 30 days and 45 days, respectively. Amit begins the work alone, and after 'd' ...
Tony has 3 sons – Harry, Peter and Murphy. Harry and Peter can complete the work in 24 days and 36 days respectively. In how many days Murphy will...
Q can do a work in 15 days and R can do the two-third work done by P and Q together in a day. If R completes the work in 18 days, how many days will it ...
