Find the greatest number of three digits which is a perfect square.

The area of a square field is 60025m². A man cycles along its boundary at 18 Km/hr. In how much time will he return at the starting point?

The cost of leveling and turning a square lawn at Rs 2.50 per m² is Rs13322.50 Find the cost of fencing it at Rs 5 per metre.

Find the smallest number which must be added to 2300 so that it becomes a perfect square.

Find the square root of:

(i) (ii)

(iii) (iv)

(v) (vi)

(vii) (viii)

(ix) (x)

(xi) (xii)

(xiii) (xiv)

(xv)