The circumference of a circular ground is 88 metres. A strip of land,…

Question

The circumference of a circular ground is 88 metres. A strip of land, 3 metres wide, inside and along the circumference of the ground is to be levelled. What is the budgeted expenditure if the levelling costs Rs. 7 per…

Accepted Answer

Option D. Rs. 1650. Answer & Solution Answer: Option D Solution: Let the radius of the ground be R metres. Then, & 2 R = 88 & R = ( 88 × 72 × 22 ) & R = 14\,m Area of land strip : & = [ ( 14 )^2 - ( 11 )^2 ]m^2 & = ( 227 × 25 × 3 )m^2 & = ( 16507 )m^2 ∴ Cost of levelling : & = Rs . ( 16507 × 7 ) &…

The circumference of a circular ground is 88 metres. A strip of land, 3 metres wide, inside and along the circumference of the ground is to be levelled. What is the budgeted expenditure if the levelling costs Rs. 7 per square metre ?

Solution