Question

12) Which of these are co-prime
(a) 16, 18 (b) 11, 48 (c) 8,23
(i) a
(ii) b
(iii) b and c​

Answer 1

Answer:

may be 2 one is the answer

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

Which of these are co-prime

(a) 16, 18 (b) 11, 48 (c) 8,23

(i) a

(ii) b

(iii) b and c

EVALUATION

We know that two numbers are said to be Co-prime if HCF of the numbers is 1

(a) Here the numbers are 16 , 18

Now HCF of the numbers = 2

So the numbers are not co-prime

(b) Here the numbers are 11 , 48

Now HCF of the numbers = 1

So the numbers are co-prime

(c) Here the numbers are 8 , 23

Now HCF of the numbers = 1

So the numbers are co-prime

FINAL ANSWER

Hence the correct option is (iii) b and c

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