Question

Which of the following number will replace the question mark (?) and complete the given number series? 4, 5, 12, 39, 160,?

• A. 850
• B. 800
• C. 805
• D. 804

Answer 1

Answer:

C. 805

logic is

$(4*1)+1=5$

$(5*2)+2=12$

$(12*3)+3=39$

$(39*4)+4=160$

$(160*5)+5=805$