Direction (66-70): What should come in place of the question mark(?) in the following number series?

8, 39, 155, 464, ?

The average of five numbers is 49. The average of the first and the second numbers is 48 and the average of fourth and fifth numbers is 28. What is the third number?

Simplification the following equations

Directions : What will come in the place of the question mark (?) in the following number series?

217 344 513 730 ?

Directions : What will come in the place of the question mark (?) in the following number series?

? , 8, 14, 34, 76, 148

In the following questions two equations numbered I and II are given. You have to solve both the equations and ____
(A) x>y
(B) x≥y
(C) x<y
(D) x≤y
(E) x=y or the relationship cannot be established
I.
II.