Question
The pest density at which control measures should be
applied to prevent an increasing pest population is _____Solution
An economic threshold is the insect's population level or extent of crop damage at which the value of the crop destroyed exceeds the cost of controlling the pest.
A and B can complete a task together in 22 days, while B alone takes 44 days to finish it. A began working alone and left after ‘x’ days, after whic...
- Pipes A and B can fill a cistern in 48 and 80 minutes respectively. Another pipe C can empty the cistern in 1 hour 36 minutes. A and C are opened first. Af...
‘P’ is 20% more efficient than ‘Q’. ‘P’ can do a piece of work in 15 days. They begin the work together, but ‘Q’ leaves after 6 days. Th...
Alice can build one section of a wooden fence with a base length of 18 meter and a height of 25 meter in 18 days. Bob can construct 80% of one side of a...
A and B together can complete a piece of work in 12 days. A alone can complete the work in 20 days. A starts the work and is joined by B after 5 days. H...
The time taken by ‘A’ to build a wall alone is 40% more than the time taken by him to build it along with ‘B’. ‘B’ will take how much percen...
- (x + 9) laborers complete 45% of a task in 12 days working 5 hours/day. The rest is done by (x + 4) laborers in 18 days working 5 hours/day. Find x.
'P', 'Q', and 'R', working in unison, can complete an assignment in 10 days. 'P' and 'Q' finish it in 12 days, while 'Q' and 'R' complete it in 15 days....
The ratio of time taken by P, Q and R to complete work alone is 4:6:3 respectively. If all three together complete the work in 8 days, then find in how ...
Rohit is five times as efficient as Sohan and twice as efficient as Mohan. If Sohan takes 15 days to finish some work, then find the time taken by Rohit...
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