let the number of painters be n
10 painters can complete in 5 days. so 1 painter can complete the 1/50 th of work in 1 day
since dabblers efficiency is half 1 dabbler can do 1/100 of work in 1 day
n can either 5 or 6.
let the amount of paint used by dabbler is x. so amount of paint used by painter is 0..75*x
now if n=6
x is negative so n<>6
total paint=35 liitres
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The explantion in the solution is bit nebulous. Can someone explain me in a more lucid way
Why this solution does not work? What is the conceptual gap here?
Since two opening are for women only so two out of 6 are selected in 6c2 ways. Then for the remaining two openings out of 9 men and 4 women , 2 are selected which can be done in 13c2 ways. so total of 1170 ways.
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