self Maths Puzzle

103,102,113,112.
Above numbers are special square numbers. Tell Why?

Read Solution (Total 2)

self Other Question

Using any of the operators but only two 4's, make a number 2 Ravi is standing in a row at the position where the difference between the product of his position and the persons before him and product of his position and persons after him is 18.What is Ravi's position and total numbers of persons in row.