2, 6, 12, 20, 30, 42, 56, (......) (a) 60        (b) 64          (c) 72         (d) 70

2 8 12 20 30 42 56

56, 72, 90, 110, 132, 150 (a) 72 (b) 110 (c) 132 (d) 150

If x % of (12)/5 is (18)/(25), then x= (a) 30 (b) 40 (c) 72 (d) 50

The next number of the sequence 2,6, 12, 20, 30, 42, 56. — Is

Which number will fit in question mark (?) place in the following series? 2, ?, 12, 20, 30, 42 (A) 2 (B) 4 (C)6 (D) 8

42 : 56 : : 72 : ? (a) 81 (b) 90 (c) 92 (d) 100

{:(6,7,8),(36,49,64),(42,56,?):}

In Figure, the value of x is (a) 12 (b) 15 (c) 20 (d) 30