The price of 40 m LED strap light is Rs. 1000. What is the cost of lighting LED strap light for circular hall of radius 700 cm?
The price of 40 m LED strap light is Rs. 1000. What is the cost of lighting LED strap light for circular hall of radius 700 cm? Correct Answer Rs. 1100
Given,
The price of 40 m LED strap light = Rs. 1000
The price of 1 m LED strap light = 1000/40 = Rs. 25
Radius of circular hall = 700 cm = 7 m
Circumference of circular hall = 2 × 22/7 × 7 = 44 m
The Cost of lightning for hall using LED strap light = 44 × 25 = Rs. 1100
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Feb 20, 2025