1.20,22,25,30,37,( ) A,48 B,49 C,55 D,81
2.2,4,10,18,28,( ),56 A.32 B.42 C.52 D.54
3.0,4,18,( ),100 A.48 B.58 C.50 D.38
4.637951,59736,6795,976,( ) A.96 B.69 C.76 D.67
5.1,52,313,174,( ) A.5 B.515 C.525 D.545