Jasmine's age is twice that of Kevin, Kevin's age is twice that of Tyler and Tyler's age is twice that of Avery. If the average of the ages of Jasmine, Kevin, Tyler and Avery is 30 years, then what is the present age of Jasmine?

Tyler bought a total of 17 hens and ducks. He got a discount of $0.40 for each hen and a discount of $ 1.30 for each duck. He saved $14 in total. How many ducks did he buy?

A pole is broken such that top of the pole touches the ground. If length of the pole is 242 feet and pole is broken at a height of 105 feet from the ground, find the distance from base of pole to the point where its top touches ground.

In a community, two neighbours have rectangular backyard having the same area of 1440 sq. meter. If the breadth of first backyard is 45 meter and breadth of second backyard is 9 meter, find which backyard will require more fencing and by how much?