Question

M 6. X can complete a job in 12 days. If X and
Y work together, they can complete the
job in 6% days. Y alone can complete the
job in
(a) 10 days (b) 12 days
(c) 15 days (d) 18 days​

Answer 1

Step-by-step explanation:

X =12

X+Y = 6

WORK =12

X efficiency =1

X+Y =2

Y =2-1

= 1

time =12/1

= 12 days option {b}