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JECFA is an international scientific expert committee administered jointly by the Food and Agriculture Organization of the United Nations (FAO) and WHO. It has been meeting since 1956, to evaluate the safety of food additives, contaminants, naturally occurring toxicants and residues of veterinary drugs in food.
P does one fourth as much work as Q in two third of the time. If together they take 24 days to complete the work, how much time shall Q take to do it?
Person A is 80% more efficient than person B. A and B together can complete a certain task in 10 days, while B and C together can complete the same task...
A work can be completed by ‘A’ and ‘B’, alone in 10 days and 12 days, respectively. Find the number of days taken by ‘C’ to complete the sam...
How can we determine the value of x, given that (x+8) workers, working 9 hours a day, can finish 60% of a task in 12 days, and (x+2) workers, working 3 ...
P, Q and R take 18, 15 and 10 days respectively to complete a job. Compare their efficiencies as a ratio.
Pawan, Bittu, and Raju can individually complete a task in 36 days, 60 days, and 30 days, respectively. They all begin working together, but Raju stops ...
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?
An elephant can do a work as fast as two horses ‘A’ and ‘B’ can do it by working together. If horse ‘A’ alone can complete the work in 9 hou...
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 task in 12 days, while B and C together can complete the same task in 15 days. A and C together take 20 days to finish i...
