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  1. If sum of two numbers be a and their product be b, then the sum of their reciprocals is
    1. 1
      		 +
      1
      ab
    2. b
      a
    3. a
      b
    4. 1
      ab
Correct Option: C

If the numbers be x and y, then
x + y = a and xy = b

∴ 
1
 +
1
 =
x + y
 =
a
yxxyb


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