Question

Find the wrong number 33 321 465 537 573 590 600

Answer 1

The wrong number is "590(correct, 591)".

Step-by-step explanation:

The given series is

33, 321, 465, 537, 573, 590, 600

321 = 3 + 288 = 321

465 = 321 + $\dfrac{288}{2}$ = 321 + 144 = 465

537 = 465 +  $\dfrac{144}{2}$  = 465 + 72 = 537

573 = 537 + $\dfrac{72}{2}$ = 537 + 36 = 573

590 = 573 + $\dfrac{36}{2}$ = 573 + 18 = 591 ≠ 590, 590 is wrong number

600 = 591 +  $\dfrac{18}{2}$ = 591 + 9 = 600

Hence, the wrong number is "590(correct, 591)".