A and B do a work with 5 days, A and C in 6 days, B and C in 20 days.If A do alone how many days it will take?
Submitted by: AdministratorI think A will take 9-days.
Submitted by: Administrator
Submitted by: Administrator
i think a+b=5
a+c = 6
b+c = 20
so if u solve these equations u may get 0.574(approx) so, i think in half day A completes the work...
Submitted by: Deepika
a+c = 6
b+c = 20
so if u solve these equations u may get 0.574(approx) so, i think in half day A completes the work...
Submitted by: Deepika
if you solve above equations ;
'A' takes 4.5 days to complete
Submitted by: Sirisha
'A' takes 4.5 days to complete
Submitted by: Sirisha
A+B)'s 1 day work = 1/5
(A+C)'s 1 day work = 1/6
(B+C)'s 1 day work = 1/20
(A+B+C)'s 1 day work = 5/24
A's 1 day work = 5/24 - 1/20 = 19/120
Total days taken by A = 120/19
6days change...
Submitted by: Mani
(A+C)'s 1 day work = 1/6
(B+C)'s 1 day work = 1/20
(A+B+C)'s 1 day work = 5/24
A's 1 day work = 5/24 - 1/20 = 19/120
Total days taken by A = 120/19
6days change...
Submitted by: Mani
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