Answer:
The material will be used for 24 days.
Step-by-step explanation:
Given that:
Materials made in a month = 240 tonnes
More materials to be made = 60 tonnes
Total material to be made = 240+60 = 300 tonnes
Days in a month = 30 days
Materials : Days
240 : 30
300 : x
As the production is increasing, the material will be used before 30 days.
This is an inverse proportion.
![\frac{240}{300}=\frac{x}{30}](https://tex.z-dn.net/?f=%5Cfrac%7B240%7D%7B300%7D%3D%5Cfrac%7Bx%7D%7B30%7D)
Using cross multiplication;
300*x = 240*30
300x = 7200
Dividing both sides by 300
![\frac{300x}{300}=\frac{7200}{300}\\x=24](https://tex.z-dn.net/?f=%5Cfrac%7B300x%7D%7B300%7D%3D%5Cfrac%7B7200%7D%7B300%7D%5C%5Cx%3D24)
Hence,
The material will be used for 24 days.
Answer:
First one, Third one, Fifth one, and the last one too.
Step-by-step explanation:
Do you have a picture to go with this? I can't help without the picture :(