40 students on each bus. 248 minus 8 equals 240. 240 divides by 6 equals 40.
Area of Frame and Picture
Area = L * W
L = 9
W = 6
Area = 9*6 = 54 in²
Area of Picture
Area = L*W
L = 6
W = 4
Area = 6 * 4
Area = 24 in²
Area of Frame
Area of Frame = Total Area - Picture Area
Area of Frame = 54 - 24
Area of Frame = 30 in²
You have a 50% of drawing an odd number on both times because
1,3,5,7,9 are odd numbers
and
2,4,6,8,10 and even numbers
