Which of the following are not twin-primes? 3, 5          (b)  5, 7         (c)   11, 13          (d)   17, 23

Which of the following are not twin-primes? (a) 3, 5 (b) 5, 7 (c) 11, 13 (d) 17, 23

Which of the following numbers are twin primes? (a) 3, 5 (b) 5, 11 (c) 3, 11 (d) 13, 17

Which of the following numbers are twin primes? 3,5 (b) 5,11 (c) 3,11 (d) 13,17

Which among the following pairs of numbers are twin primes? (a). (9, 11) (b). (13,17), (c). (29,31), (d). (59,61).

Which of the following is a proper fraction? (13)/(17) (b) (17)/(13) (c) (12)/5 (d) 1 3/4

Which of the following is a proper fraction? (a) (13)/(17) (b) (17)/(13) (c) (12)/5 (d) 1 3/4

Find the wrong number in the following series. 3, 5, 7, 11, 13, 17, 23

Which of the following are in descending order of their values? (5)/(9),(7)/(11),(8)/(15),(11)/(17) (b) (5)/(9),(8)/(15),(11)/(17),(7)/(11) (c) (11)/(17),(7)/(11),(5)/(15),(5)/(9)(d)(11)/(17),(7)/(11),(5)/(9),(8)/(15)

Find the median of the following data: 1, 12, 5, 3, 7, 13, 9, 23, 17, 11 and 6

If S={1,3,5,7,11,13}, then which of the following are the subsets of S ? A={2,4},B={5,7},C={5,11,13},D={1,2,5}