Snow mountain has a snow-machine that will lay down on inch of snow per hour over an area of 40,000 square feet. Which expression shows how to find the number of hours this machine take to lay down linch of new snow on a ski run that is 800 feet long and 150 feet wide?

Q. A boy of mass 62 kg is standing on skis kept on snow. Mass of each ski is 1 kg and its base area is $800c{m}^2$. What pressure is getting exerted on the snow?
[Take g = 10 m/s]

Q. Working simultaneously at their respective constant rates, Machines A and B produce 800 nails in x hours. Working alone at its constant rate, Machine A produces 800 nails in y hours. In terms of x and y, how many hours does it take Machine B, working alone at its constant rate, to produce 800 nails?

Q. A snowstorm dumped $18$ inches of snow in $12$ hours. How many inches of snow fell in an hour?

Q. Manoj has a new house. He to lay tiles on the floor. The size of the room is 9 feet × 12 feet. In the market, there are three kinds of square tiles: 1 feet × 1 feet, 2 feet × 2 feet and 3 feet × 3 feet. Which size of tile should he buy for his room, so that he can lay it without cutting?

Q. Mr. Smith owns a farm 200 feet long and 150 feet wide. The cost of fencing it is $25 per foot. Find the cost of fencing the farm.