The value of 2492 – 2482 is
(a) 12 (b) 477 (c) 487 (d) 497
(d) Now, 2492 – 2482 = (249 + 248) (249 – 248) [using identity, a2 – b2 = (a – b)(a + b)]
= 497 x 1 = 497.
Leave a comment
All Study Material
