What will come in place of the question mark (?) in the given number series ?
500 484 451 384 266?
The pattern is :
500 - 16 = 484
484 - 33 (= 16 +1*17) = 451
451 - 67 (= 33 + 2*17) = 384
384 - 118 (= 67 + 3*17) = 266
266 - 186 (= 118 + 4*17) = 80
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