30 16 10 8 8 9 ?

In which of the following tables a and b vary inversely: (i) a 8 16 32 256 \ b 32 16 8 1 (ii) a 9 18 2 12 b 8 4 30 6 (iii) a, 2, 16, 8, 4 b, 40, 5, 10, 20

In which of the following tables a and b vary inversely: (i) a 8 16 32 256 b 32 16 8 1 (ii) a 9 18 2 12 b 8 4 30 6 (iii) a, 2, 16, 8, 4 b, 40, 5, 10, 20

Find the mode of each of the following data : 9, 7, 8, 16, 12, 9, 8, 5, 9, 11

The mode of the observations 8, 9, 10, 11, 12, 8, 9, 12, 9, 8, 9, 11, 9, 8 is

Find the mean of the following frequency distributions: Class interval: 0-8 8-16 16-24 24-32 32-40 Frequency: 6 7 10 8 9

Find the mean of the following frequency distributions: Class interval: 0-8 8-16 16-24 24-32 32-40 Frequency: 6 7 10 8 9

A number when divided by three consecutive numbers 9, 11, 13 leaves the remainders 8, 9 and 8 respectively. If the order of divisors is reversed, the remainders will be 10, 8, 9 (b) 10, 1, 6 (c) 8, 9, 8 (d) 9, 8, 8

Find the median, mode and mean of 9, 5, 8, 9,9, 7, 8, 9, 8. A. 9, 9,9 B. 9, 8, 9 C. 8, 9 , 8 D. 8, 9,9

Simplify : (i) 8 x (-13) + 8 x 9 (ii) (-12) x 7 + (-12) x (-4) (iii) 9 x (-16) + (-12) x (-16) (iv) 10 x (-31) + 10 x (-9)