Find the cost of levelling a ground which is in the shape of a sector with angle `40^(@)` and radius 63 m at the rate of Rs. 15 per square metre. The following steps are involved in solving the above problem. Arrange them in sequential order. (A)The are of the sector `=(theta)/(360^(@))pir^(2)` (B) Cost of levelling the ground per square metre = Rs. 15 (C) `therefore "The area of the ground"=(40^(@))/(360^(@))xx(22)/(7)xx63xx63=1386m^(2)` (D) Cost levelling `1386m^(2)=1386xx15="Rs."20,790`A. ADBCB. ABCDC. CABDD. ACBD

Find the cost of levelling a ground which is in the shape of a sector

1.	Find the cost of levelling a ground which is in the shape of a sector with angle `40^(@)` and radius 63 m at the rate of Rs. 15 per square metre. The following steps are involved in solving the above problem. Arrange them in sequential order. (A)The are of the sector `=(theta)/(360^(@))pir^(2)` (B) Cost of levelling the ground per square metre = Rs. 15 (C) `therefore "The area of the ground"=(40^(@))/(360^(@))xx(22)/(7)xx63xx63=1386m^(2)` (D) Cost levelling `1386m^(2)=1386xx15="Rs."20,790`A. ADBCB. ABCDC. CABDD. ACBD
Answer» Correct Answer - D (A), (C), (B), and (C) is the required sequential order.