Question
A series given below follows a certain pattern,
2500, 1500, (?), 1796, 1860, 1852 "If (?) = B − 185, find the cube root of B."Solution
ATQ, tLogic: −10³, +8³, −6³, +4³, −2³ So: 2500 − 1000 = 1500 1500 + 512 = 2012 2012 − 216 = 1796 1796 + 64 = 1860 1860 − 8 = 1852 Thus: (?) = 2012 "If (?) = B − 185, find the cube root of B." Then: B = 2012 + 185 = 2197 And: ∛2197 = 13 Answer: 13
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