For a same amount of work an adult take 6 hours less than a boy .if they together complete the work in 13 hours 20 mins,find how much time will the boy alone take to complete the work.
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the boy will complete work in 19 hours and 20 min
priyahariharchamp:
sol pleasee.
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1/x+1/x+6=13*60+20 or , x+6+x/x^2+6x=13*60+20 or 2x+6/x^2 +6x=800 min FIND THE VALUE OF x you get the value of x in min then divide by 60 to get hours hope it WILL HELP YOU . THANK YOU
but adult takes 6 hrs less...so we should subtractright??
OK OK maybe you are correct so the solution will be x and (x-6) but in the same way
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