How many iron rods, each of length 7 m and diameter 2 m can be made out of 0.88 cubic metre of iron?
Answers
Answer:
The volume of one iron rod is 22 m³ which is greater than the 0.88 m³ of available iron.Therefore, the iron available cannot make even a single rod.
Step-by-step explanation:
Let's first work out the volume of oneiron rod.
It is in cylindrical shape. So, the volume is given by:
Volume = πr²h
In our case: r = 2/2 = 1m, height = length = 7 m
Doing the substitution we have:
Volume = 22/7 × 1² × 7 = 22 m³
The volume of one iron rod is 22 m³ which is greater than the 0.88 m³ of available iron.
Therefore, the iron available cannot make even a single rod.
Step-by-step explanation:
Given How many iron rods, each of length 7 m and diameter 2 m can be made out of 0.88 cubic metre of iron?
- Given length of iron rod = 7 m, diameter of rod = 2 cms, r = 1 cm = 1/100 m
- Now volume of 1 rod = V1 = π r^2 h
- = 22/7 x (1/100)^2 x 7
- = 22 / 10^4 cu m
- Given volume of iron = 0.88 cu m
- We know that nv1 = v
- n(22 / 10000 m^3) = 0.88 m^3
- So n = 88/100 x 10000 / 22
- Or n = 400
Therefore number of rods = 400
Reference link will be
https://brainly.in/question/7117038