Question

please guys help me with this question it's urgent ​

Answer 1

Answer:

Its option iii - 867 , 255

Answer 2

Given : pairs of numbers

272 , 1032

847 , 2160

867 , 255

616 , 309

To Find : which are coprime

Solution:

HCF is 1 for coprime numbers

1032 = 272 * 3 +  216

272 = 216 * 1  +  56

216 = 56 * 3  +  48

56 = 48 * 1 + 8

48 = 8 * 6

8 is the HCF

Hence not co prime

2160 = 847 * 2  +  466

847 = 466 * 1  +  381

466 = 381 * 1  +  85

381 = 85 * 4  +  41

85 = 41 * 2  + 3

41 =  3 * 13  + 2

3  = 2 * 1  +  1

2  = 1  * 2

Hence 1 is the HCF

so 2160 , 847 are co prime

867 , 255

867 = 255 * 3 +  102

255 = 102 * 2 + 51

102  = 51 * 2

HCF = 51

not co prime

616 , 309

616 = 309 * 1  + 307

309 =  307 *  1 + 2

307 = 2 * 153 + 1

2 =  1 * 2

Hence 1 is the HCF

so 616 , 309 are co prime

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