A two digit no is 18 less than square of the sum of its digit.how many such no are there?
Choose the correct option
A) 2 B) 3 C) 4 D) 5 E) 6
63=(6+3)^2-18=81-18   82=(8+2)^2-18=100-18   2NSWER:2
<result>A</result>
A two digit no is 18 less than square of the sum of its digit.how many such no are there?