When a certain tree was first planted, it was 4 feet tall, and the height of the tree increased by a constant amont each year for the next 6 years. At the end of the 6th year, the tree was 1/5 taller than it was at the end of the 4th year. By how many feet did the height of the tree increase each year?
(a) 3/10
(b) 2/5
(c) 1/2
(d) 2/3 correct
(e) 6/5
My first answer was that the tree grew 1/10 each year since between year 4 and 6 it grew 1/5. But that's not one of the choices and it's too easy to be a solution anyway.
(a) 3/10
(b) 2/5
(c) 1/2
(d) 2/3 correct
(e) 6/5
My first answer was that the tree grew 1/10 each year since between year 4 and 6 it grew 1/5. But that's not one of the choices and it's too easy to be a solution anyway.
