A square field and an equilateral triangle park have equal perimeter .If the cost of ploughing the field at the rate of $Rs 5/m^2$vis Rs 720. Find the cost of maintain the park at the rate of $Rs10/m^2$?

Question

( A ) Rs 1354.48
( B ) Rs 1230.48
( C ) Rs 1108.48
( D ) Rs 1008.48