Question

A tree is 6ft 10in tall; it has grown 7ft 6in. How tall is the tree now?

a) 13ft 4in

b) 14ft 4in

c) 15ft 4in

d) 16ft 4in

Answer 1

To calculate the new height of the tree, convert both measurements to inches, sum them, and then convert them back to feet and inches. The tree is now 14 feet 4 inches tall, option b).

Step-by-step explanation:

The question asks for the new height of a tree if it was originally 6 feet 10 inches tall and has grown an additional 7 feet 6 inches. To calculate the new height:

1. Convert both heights to inches: 6 feet 10 inches is (6 x 12) + 10 = 82 inches, and 7 feet 6 inches is (7 x 12) + 6 = 90 inches.
2. Add the two heights in inches: 82 inches + 90 inches = 172 inches.
3. Convert the total inches back to feet and inches: 172 inches is 14 feet 4 inches (since 144 inches is 12 feet, and 28 inches remain).

Therefore, the new tallness of the tree is 14 feet 4 inches, which corresponds to option b).