Amar works twice as fast as Akbar and Akbar works thrice as fast as Anthony. Amar works for 10 minutes alone, followed by Akbar, who works for 40 minutes alone to complete half of the work
in how many hours would Anthony complete the remaining work?
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Can some one explain this i got sent this. is this a threat i’m scared

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters

X=4 / y=100 if x=10 then what is y=?