- A₹(20 + 4s)
- B₹80s
- C₹20s
- D₹24s
Step-by-Step Solution
Fence length = 4s metres. Cost = 20 × 4s = 80s rupees. (₹20s fences only one side.)
Answer: B) ₹80s
Fencing costs ₹20 per metre. Which rule gives the cost of fencing a square field of side s metres?
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