There is a square field of area ‘X’ square meters. A cylindrical ditch of radius 7 meters and depth 2 meters is dug, and the earth is taken out and spread over the remaining part of the square field, the height of square field which goes up by 0.77 meters. What is the value of ‘X’ ?
Correct Answer: 554 sq. m
Explanation:
Volume of the cylindrical ditch = πrxrh = 22/7 ×7×7×2 = 308 sq.m
