Answer:
option F
Explanation:
given,
capacity of tank = 1000 gallon
volume of water leak = 300 gallon
time = 30 min
water is leaking at the rate
formula used

At t = 0 A = 1000 gallons

B = 1000

at t = 30 A = 700


taking ln both side


now,



hence, the correct answer is option F