Question

2. Which of the following are pairs of co-primes?
(i) 8, 14
(ii) 4, 5,
(iii) 17, 19
(iv) 27. 15
3. List the prime numbers from 25 to 100 and say how many they are.​

Answer 1

Answer:

(iii)17,19

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Answer 2

Answer:

(iii)17,19

Step-by-step explanation:

Carefully examining the option

we notice that numbers in third options only have "1" as common factor.