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

Related Questions