An outlet pipe takes 5 hours to empty a tank. What part of the tank will be emptied in 3 hours? a)2/5
b) 3/5
c) 4/5
d) 1/5

Explanation needed!

Inlet pipe in 1 hr fill tank=1/3

Outlet pipeempty tank in 1hr=1/5

Tank filled in 1 hr=1/3–1/5=2/15

Time to fill tank=15/2 hr=7 hr 30 minutes

b) 3/5

Step-by-step explanation:

according to question,

In 5 hours , a pipe empty 1 tank

in 1 hour, ". ". 1/5 part of tank

In 3 hours , a pipe emptied 1/5* 3

=. 3/5 part of tank

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3