It’s would be 160 km since 160/80x60=120 min and 160/120x60=80min
I’m not that smart... but let me use first as example.. 240 divided by 4
Answer is 300
first change the 17% to decimal value, which is 0.17
Put everything in equation: 51=0.17x
then solve for it
51=0.17x
x=51/0.17
x=300
the number is 300
