A rectangular garden is 450 m long and 180 m
wide. How much will it cost to water it at 20
paise per square metre?
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Given :
- Length of garden = 450 m
- Breadth of garden = 180 m
- Cost of water per m² = 20 paise
________________________________
To Find :
- How much will it cost to water it at 20
- paise per square metre?
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Solution :
★ Area of the rectangular garden = L × B
→ Area = 450 × 180
→ Area = 81,000 m²
Cost of water in 1 m² = 80 paise
Cost of water in 81,000 m² =
→ 80 × 81000
→ 6,480,000 Paise
To convert paise into Rupees divide it by 100
→ 6,480,000/100
→ 6,480 Rs
∴ Cost of watering is Rs 6,480
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