Question

work of a is half of work of b and three fourth of c. if a alone can finish that work in 12 days then how much a,b and c together will take to finish the work.

Answer 1

a can finish a work alone in 12 days .and b can .................,..........12X2=24 .and can do in 12X4/3=16 DAYS . SO,a 1day work of a = 1/12 . B 1day work =1/24 .c 1day work=1/16 . (A+b+c) 1day work=1/12+1/24+1/16

=(4+2+3)/48

=9/48

=3/16

=16/3 days

=5 day 3 hour