Identify the word that is last in alphabetical order: Orange, Mango, Lemon, Papaya.

D. PAPAYA

What is the next letter in the series: A, C, E, G, ?

A. I

In the sequence 3, 6, 9, 12, 15, 18, how many times does the number 12 occur?

A. 1

Complete the series: B, D, F, H, ?

A. J

What is the H.C.F. of the polynomials 2x^2 + 4x and 4x^2 + 8x?

A. 2X