correct answer is: b) Rs 510

Explanation

Here,
Length = 24 m
Breadth = 10 m
We know,
Perimeter of rectangle = 2 × (length + Breadth)
\therefore Perimeter of the field is =2\times\left(24+10\right) m
\rightarrow\left(2\times34\right) m
\rightarrow68 m
Now,
1 meter fencing cost = Rs 7.50
\therefore 68 meter fencing cost = Rs \left(7.50\times68\right)
\rightarrow Rs 510
Ans: The cost of fencing the field is Rs 510.

Additional variations of this particular query are:
1. Calculate the percentage increase in the area of a square field with a side length of 100m when a 5m wide path is laid around it.
2. Find out the percentage change in the area of a square field measuring 100m on each side after a 5m wide path is added around it.
3. Determine the percentage increase in the total area of a square field with side length 100m when a 5m wide path is constructed around it.
4. What is the percentage growth in the area of a square field of 100m side length when a 5m wide path is introduced around it?
5. Calculate the percentage increase in the square field’s area when a 5m wide path is added around it, given that its side length is 100m.