Which of the following pair of numbers is co-prime?

22 and 11

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14 and 22

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7 and 14

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7 and 11

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Solution

The correct option is D
7 and 11

Since 7 and 11 have only one common factor and that is 1 so they are co-prime.

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Similar questions

If the perimeter of a circle is equal to that of a square , then the ratio of their areas is
(a) $22 : 7$ (b) $14 : 11$ (c) $7 : 22$ (d) $11 : 14$

2 \frac{2}{7} \div 1 \frac{4}{11} \times 2 \frac{4}{9}

If the perimeter of a circle is equal to that of square, then the ratio of their areas is:
(A) $22 : 7$
(B) $14 : 11$
(C) $7 : 22$
(D) $11 : 14$

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