Question

Q.
If the square of a three digit number ( 5 ab) can be
represented as (5ab)2 =(x + ab) * 1000+(ab)?, then the
value of x^3 - x^2 is:
(A) 249^2 x 250
(B) 250^2 x 249
(C)250^2 × 249^2
(D) 250 x 249
​

Answer 1

simple 1 st one is answer