Speed of boat ‘A’ in still water = 160/8 = 20 km/hr Speed of boat ‘B’ in still water = 20 × (3/4) = 15 km/hr Downstream speed of boat ‘B’ = 15 + 3 = 18 km/hr Time taken by boat ‘B’ to cover 234 km in downstream = 234/18 = 13 hours
‘A’ alone can do some work in 12 days. ‘B’ and ‘C’ together can do the same work in 6 days. If ‘B’ is half as efficient as ‘A’, then...
12 men take 6 days to complete a piece of work. They worked for a period of 2 days. After that, they were joined by 4 more men. How many more days will ...
5 girls can do a piece of work in 9 days, 4 boys can do the same piece of work in 8 days, 6 men do the same piece of work in 2 days and 4 women can do t...
Three men A, B, and C working together dig 648 m deep in six days. C digs as many meters more than B. B digs as many meters more than A. Then how much d...
‘A’ alone can do some work in 13 days. ‘B’ and ‘C’ together can do the same work in 18 days. If ‘B’ is half as efficient as ‘A’, the...
A can complete a work in 10 days. B takes 4 days less than A to complete the same work. In how many days can both of them together complete 80% of the w...
John, Emily, and Michael can each complete a task in 15 days, 20 days, and 18 days, respectively. They decide to work on the task alternately, starting ...
A and B together can complete a piece of work in 10 days. A alone can complete the work in 15 days. How many days will B take to complete the work alone?
2 men and 3 boys can do a piece of work in 405 days while 3 men and 2 boys can do the same work in 324 days. In how many days can 5 men and 5 boys do th...
50 men can complete a piece of work in 15 days. 10 men started the same work and worked for 10 days, and then joined by ‘x’ more men such that the r...
