Related Questions

One-fifth of the batteries produced by an upstart factory are defective and one -quarter of all batteries produced are rejected by the quality control technician. If one-tenth of the non-defective batteries are rejected by mistake and if all the batteries not rejected are sold, then what percent of the batteries sold by the factory are defective?
In a refrigeration system, heat absorbed in comparison to heat rejected is
A one tonne refrigerating machine means that
When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by
Of the fruit that arrives at a cannery, 20 percent by weight is rejected before processing. Of the fruit that is processed, 15 percent by weight is rejected be fore canning. Of the fruit that arrives at the cannery, what percent by weight is canned?
Of the fruits that arrive at the cannery, 20 percent by weight is rejected before processing. Of the fruit that is processed, 15 percent by weight is rejected before canning. Of the fruit that arrives at the cannery. what percent by weight is canned?
Of the total no. of oranges that arrive at a juice company, 20% by weight is rejected before processing. Of the oranges that are processed, 15% by weight is rejected before being juiced. Of the oranges that are juiced, 25% are wasted as a result of juice making . Of the oranges, those arrive at the company, what percent by weight is juiced?
A machine P can print out one lakh books in 8 hours. Machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M.While machine P is stopped at 11 A.M. and remaining two machines completed the work. Approximately at what at what time will the work time (to print one lakh books) be finished?
A small factory with 3 machines has a job of stamping out a number of pan covers. The newest machine can do the job is 3 days, another machine can do it in 4 days, and the third machine can do it in 6 days. How many days will the factory take to do the job using all the machine?
A machine P can paint one lakh books in 8 hours; machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines started operating at 9 A. M. while machine P is stopped at 11 A. M. and the reamaining two machines completed the work. Approximately at what time will the work (to print one lakh books) be finished?