The number 25 is a perfect square . All others are not a perfect square.
‘D’ and ‘E’ can complete a project in 40 days, while ‘E’ and ‘F’ can complete it in 60 days. ‘D’ and ‘E’ worked together on it f...
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...
The ratio of time taken by P, Q and R to complete work alone is 6:8:3 respectively. If all three together complete the work in 5 days, then find in how ...
Amisha is 50% more efficient than Khushi. Amisha started a work, worked for 'w' days and then Khushi replaced Amisha. khushi completed the remaining wor...
Suraj is one third as good as workman as Pankaj and together they finish a piece of work in 36 days. The number of days taken by Suraj alone to finish t...
'A' takes 7 times as much time as 'B' takes or 3 times as much time as 'C' takes to finish a piece of work. Working together, they can finish the work ...
'Preeti' can complete a piece of work in 70 days, while 'Bhanumati' can complete it in 90 days. They both started the work together, but 'Preeti' left a...
P can do a piece of work in 25 days, Q can complete double the work in 40 days and R can do the work in 30 days. If all of them together earn Rs. 7400, ...
Efficiency of A is 25% more than B and B takes 30 days to complete a piece of work. A started the work alone and then B joined him 4 days before actual ...
A can do a work in 45 days and the same the work is done in 15 days by A and B together, then in how many days B can complete the 20% of work?
