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Most ozone (about 90%) is found in the stratosphere. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer”.
‘A’ and ‘B’ can complete a certain work in 18 days and 10 days, respectively. They started working together and worked till completion of the wo...
A, B and C alone can complete a work in 12, 24 and 20 days respectively. All of them started working together but after 2 days from start A left the job...
A and B can complete a piece of work in 12 days and 15 days respectively. They start working together, but after 4 days, A leaves. In how many more days...
A and B can complete a task together in 10 days, while B alone takes 20 days to finish it. A began working alone and left after ‘x’ days, after whic...
Billy, Tony and Mike were three workers, employed by a Contractor. They completed the whole work in 20 days. Initially all of them worked together, but ...
Three workers P1, P2 and P3 got work from the contractor. In 30 days, ‘P1’ completed 30% of work. ‘P2’ is 20% less efficient tha...
A and B together can do a work in 10 days, B and C can do together in 5 days while C and A together can do in 12 days. In how many days C alone will com...
Ratio of the work done by P, Q and R in one day is 5:3:7 respectively. They all together can complete the work in 35 days. Q and R worked on it for 20 d...
A alone can complete 50% of a work in 10 days while B takes 8 days more than A to complete it. If B and C together can complete the work in 12 days, the...
