Q9
50% of 60 minutes is 30 minutes
0.50 * 60 = 30
Q10
10% of 60 minutes is 6 minutes
0.10 * 60 = 6
Q11
75% of 60 minutes is 45 minutes
0.75 * 60 = 45
Q12
the order is, 65% of 80, 170% of 30, 82% of 50
0.65 * 80 = 52
0.82 * 50 = 41
1.70 * 30 = 51
Q13
200,000 * 0.01x = 130,000
130,000/200,000 = 0.65
0.65/0.01 = 65
the plane used 65% of fuel capacity on this flight
