A log is 16m long, correct to the nearest metre. It has to be cut into fence posts which must be 70m long, correct to the nearest 10 centimetres. What is the largest number of fence posts that can possibly be cut from the log?
Answers
Question (Corrected):
A log is 16m long, correct to the nearest metre. It has to be cut into fence posts which must be 70 cm long, correct to the nearest 10 centimetres. What is the largest number of fence posts that can possibly be cut from the log?
Given:
The log is 16m long, corrected to the nearest metre.
It is cut into shorter fence posts.
Each of the fence posts is 70 cm long, corrected to the nearest 10 cm.
To Find:
Largest possible number of fence posts.
Solution:
The log is 16m long, corrected to the nearest metre.
⇒ Assumed the longest possible before round
⇒ Longest possible = 16.49 m
⇒ Longest possible = 1649 cm
Each of the fence posts is 70 cm long, corrected to the nearest 10 cm
⇒ Assumed the shortest possible before round
⇒ Shortest possible = 65 cm
Find the largest possible number of posts:
Largest Possible = 1649 ÷ 65
Largest Possible = 25 (rounded down to the nearest whole number)
Answer: The largest possible number of fence posts is 25
Answer:
the largest possible number of fence posts is 25