Question

The cost of fencing a rectangular field at rs 18 per meter is rs 1980. If the width of the field is 23m, find it's length. ​

Answer 1

Answer:

$\boxed{\text{Answer: Length of field = 32m}}$

Explanation:

$\text{Total Cost = Rs. 1980}\\\\\text{Rate = Rs. 18/m}\\\\\text{Hence, Perimeter = }\frac{\text{Total Cost}}{\text{Rate}}\\\\= \frac{1980}{18}\\\\= \text{110m}\\\\\boxed{\text{Perimeter = 2(L + B)}}\\\\110 = 2(L + 23)\\\\L + 23 = 55\\\\\boxed{\text{Answer: Length of field = 32m}}$

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