36, 54, 18, 27, 9, 18.5, 4.5 (a) 4.5        (b) 18.5       (c) 54        (d) 18

8, 24, 12, 36, 18, 54, (......) (a) 27 (b) 108 (c) 68 (d) 72

4, 5, 7, 10, 14, 18, 25, 32 (a) 7 (b) 14 (c) 18 (d) 33

5 4 9 18 66 195

The median of 3, 4, 18, 20, 5 is 5.

The mean of first six multiples of 5 is (a) 3.5 (b) 18.5 (c) 17.5 (d) 30

If 6x = 18, then 18x = 54

Find the HCF of the following numbers : (a) 18, 48 (b) 30, 42 (c) 18, 60 (d) 27, 63 (e) 36, 84 (f) 34, 102 (g) 70, 105, 175 (h) 91, 112, 49 (i) 18, 54, 81 (j) 12, 45, 75

4.5 7 18 ? 335 2004