Question

If sum of two number is 1215 and their HCF is 81 then find the possible number of pair​

Answer 1

Answer:

8

Step-by-step explanation:

81x + 81y = 1215

81(x + y) = 1215

x + y = 15

Note : x and y should be relatively prime

So the possible pairs are

(1 , 14) (2 , 13) (4 , 11) (8 , 7) (14 , 1) (13 , 2) (11 , 4) ( 7 , 8)

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