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1. The painting of a hotel can be done by 10 painters in 5 days. But, in reality there were few dabblers in the group of 10 painters and therefore the work took a little over 6 days for completion. A painter worked twice as fast as the dabbler and used 25% less paint than a dabbler used. If 5 litres extra paint was used than expected, then the total paint used in painting the hotel was (in litres)

2. A, B and C can do a work together in a certain number of days. If A leaves after half the work is done, then the work takes 4 more days for completion, but if B leaves after half the work is done, the work takes 5 more days for completion. If A takes 10 more days than B to do the work alone, then in how many days can C alone do the work?

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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Answer= 170

How do I solve this ?

Answer= 24

Is it possible for an 80 percentille guy to get 99+ percentile in a year or two through hard work? Also, If the guy has a job which consumes more than 10 hours of his life daily, how does he make the effort to appear for exams like CAT?

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