Question
Which of the following number will replace the question
mark (?) and complete the given number series? 4, 5, 12, 39, 160, ?Solution
ATQ,
4β5: 4Γ1+1=5 5β12: 5Γ2+2=12 12β39: 12Γ3+3=39 39β160: 39Γ4+4=160 Next step: 160 Γ 5 + 5 = 800 + 5 = 805
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