Question
Which one of the following gases contributes maximum to
“green house” effectSolution
The correct answer is B
Jack is twice efficient as Jill and Jill can do a piece of work in 30 days. Jill started the work and after a few days Jack joined him. They completed t...
P alone can finish a piece of work ‘M’ in 6 days while Q takes 4 days to finish it alone. P, Q and R working together can finish the work ‘N’ wh...
138 unit of work can be completed by P alone in 23 days. P started working alone and joined by Q after 11 days such that they completed the remaining wo...
P, Q, R and S can do a piece of work in 20 days. If P and Q together can do it in 50 days, and R alone in 60 days, then in how many days can S alone do it?
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...
P alone can finish a piece of work ‘M’ in 8 days while Q takes 4 days to finish it alone. P, Q and R working together can finish the work &l...
- Person A can complete 25% of a job in 4 days. Person B is 20% less efficient than Person A. How many days will it take for both A and B, working together, ...
Carol, Bruce, and Peter can decorate a venue in 7, 14, and 21 days respectively. If they start working together, but Carol leaves 3 days before completi...
40 men take 15 days to finish some work. If the work is to be finished in 8 days, then how many additional men should be hired?
‘X’ and ‘Y’ together can complete a work in 16 days, while ‘Y’ and ‘Z’ together can complete the work in 10 days. If ‘Y’ takes 20 da...
