Level:
Project ID:
9000009303
Accepted:
1
Clonable:
0
Easy:
0
A tank contains \(1\: 000\)
litres of petrol. The petrol escapes at a constant speed
\(20\) litres
per minute. In what time will be the tank empty?
\(50\, \mathrm{min}\)
\(60\, \mathrm{min}\)
\(40\, \mathrm{min}\)
\(30\, \mathrm{min}\)