the sum of two nos is 528 and their hcf is 33.what are pairs of numbers asatisfying the condition

• ans will be 10
  33+495
  66+462
  132+396
  165+363
  231+297
  297+231
  363+165
  396+132
  462+66
  495+33
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• 33x+33y=528
  x+y=16
  
  
  x y
  1 15
  2 14
  3 13
  4 12
  5 11
  6 10
  7 9
  8 8
  9 7
  10 6
  11 5
  12 4
  13 3
  14 2
  15 1
  there must be 15 ways...
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• 33a+33b=528
  a+b=16
  so number pairs are(1,55) (3,13) (7,9) (5,11)=4
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