Can you guys please help me with this math problem

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

If you could answer these your a life saver

Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%