87
1x87 3x29
The product is 87
87=3x29, 35= 2x2x3x3
3x14=42 3x15=45 3x16=48 3x17=51 3x18=54 3x19=57 3x20=60 3x21=63 3x22=66 3x23=69 3x24=72 3x25=75 3x26=78 3x27=81 3x28=84 3x29=87 3x30=90
Let's say the time of traveling the distance from the town to the meeting place is t = x. So the time for the car would be x - 3 (from 8 am to 11 am). We have: 16x = 45(x - 3) 16x = 45x - 135 135 = 29x 135/29 = x x - 3 = 135/29 - 3 = 135/29 - 3x29/29 = 135/29 - 87/29 = 48/29 = 1.66 = 1 hr 39.6' = 99.6 minutes.