From the list below, form 10 pairs of co-prime numbers: 3, 5, 8, 9, 12, 15, 16, 28

From the list below, form 17 pairs of co-prime numbers: 3,5, 6,7, 12, 18, 24, 25

From the list below, form 10 pairs of co-prime numbers: 2,4,7,10,14,16,21,25

From the following numbers, form 12 pairs which are not co-prime: 2, 4, 7, 9, 10, 12, 15, 22

Mae four pairs of co-prime numbers from the following numbers: 9, 15, 20, 24, 16, 50

Calculate the standard deviation from the following following set of observations: 8, 9, 15, 23, 5, 11, 19, 8, 10, 12

A list consists of the following pairs of numbers: 51, 53; 55,57; 59,61; 63,65; 67,69; 71,73 Categorize them as pairs of: (i) co-primes (ii) primes (iii) composites

Make 5 pairs of co-prime numbers from the following numbers: 2, 6, 8 | 2, 24, 35

Write each of the following sets in set- builder form : A = { 4,6, 8 , 9, 10 , 12, 14, 15, 16, 18}

Which of the following are co-primes? (a) 8, 10 (b) 9, 10 (c) 6, 8 (d) 15, 18

Three numbers are in the ratio 1:2:3 and their HCF is 6, the numbers are (a) 4, 8, 12 (b) 5, 10, 15 (c) 6, 12, 18 (d) 10, 20, 30