1.

Q.6 4,8, 28, 80, 244,?​

Answer»

Answer:

728

Step-by-step explanation:

This is a SERIES of increasing powers of 3 with alternating ADDITION and subtraction of 1.

(3^1)+1 , (3^2)-1 , (3^3)+1 , (3^4)-1 , (3^5)+1

So the LAST term should be (3^6)-1 = 729 - 1 = 728



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