A farmer's land is in the shape of a trapezium which has its parallel sides measuring 6.32 yards and 7.68 yards and the distance between the parallel sides is 5.50 yards. The cost of ploughing the land is Rs 1200 per square yard. What amount have to be spend in order to plough the entire land?
Answer & explanation
Correct answer: option 4
Area of a trapezium = $\frac{1}{2}$ (sum of parallel sides) x height
The area of land = $\frac{1}{2}$ (6.32 + 7.68) x 5.50
= $\frac{1}{2}$ x 14 x 5.50
= 38.5 yards square
Cost of ploughing this land = Area x cost of ploughing per square yard
= 38.5 x 1200
= Rs 46,200