Question
Without stopping the speed of the train is 100 kmph,
with stopping the speed of the train is 80 kmph. Find the stop time of the train?Solution
Stopping time = (100 – 80)/120 = 20/100 =1/5 hrs = 12 min
‘A’ and ‘B’ alone can do a certain work in 30 days and 40 days, respectively. Both started the work together but after ‘x’ days ‘A’ left...
A can complete a job in 20 hours. B alone can complete the same job in 15 hrs. A work for 9 hrs and then the remaining job is completed by B. How many h...
A work can be completed by ‘A’ and ‘B’, alone in 10 days and 12 days, respectively. Find the number of days taken by ‘C’ to complete the sam...
180 unit of work can be completed by P alone in 30 days. P started working alone and joined by Q after 18 days such that they completed the remaining wo...
‘n’ men working 20 hours a day can complete a work in 8 days while (6n – 4) men working 10 hours a day can complete the same work in 8...
Efficiency of a man is 25% more than that of a woman. (2n + 4) men working 6 hours a day can complete a task in 15 days, whereas (3n - 2) women working ...
40 men can complete a piece of work in 24 days. All of them started the work together, after 6 days how much more men will be required to complete the s...
Person A can complete a certain task in 20 days, while person B can finish the same task in x days. Together, they can complete the task in 12 days. Det...
4 girls can do work in 8 days, 3 boys can do the same work in 9 days, 7 men in 2 days, and 5 women in 4 days. Who is the least efficient?
A and B together do a job in 12 days. A alone does it in 20 days. How many days for B alone?
