What should come in place of the question mark (?) in the following number series?
588 587 583 574 558 ? 497
(a) 545 (b) 543 (c) 551 (d) 557 (e) of these
(e) The series is as follows: – 12, – 22, –32, – 42, – 52, – 62 Hence, ? = 558 – 52 = 533
