It is 10 hundred or 1 thousand
The cistern is losing approximately 3.963 gallons of water per hour.
<u><em>Explanation</em></u>
A cistern is leaking 0.25 liters of water per minute.
<u>We know, 1 gallon = 3.785 liters</u>
So, 0.25 liters =
gallons
That means, the cistern is losing 0.06605....gallons of water per minute.
So, the amount of water losing in 1 hour or 60 minutes
<em>(Approximately)</em>
I=PRT
Interest=I
P=principal
R=rate in decimal
T=time in years
given
asuming 640 is the principal and not the interest
P=640
R=3%=0.03
T=2
I=640*0.03*2
I=19.2*2
I=38.4
interst=$38.40
The answer is and the number is...