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Q:

The product of 2 numbers is 1575 and their quotient is 9/7. Then the sum of the numbers is –

  • 1
    74
  • 2
    78
  • 3
    80
  • 4
    90
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Answer : 3. "80"
Explanation :

Let the numbers be x and y .

We know   xy = 1575

And  x/y = 9/7

We know   xy/x/y = 1575/9/7

We know    y2  = 1225

We know  y = 35 and x = 45

We know   The sum of the numbers = 45+35

= 80

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