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A five-digit number is 67x2y is divisible by 9 where x and y are digits satisfying x + y ≤ 4. What are the possible numbers of pair of the value of (x, y)?1. 2 2. 33. 44. 1 |
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Answer» Correct Answer - Option 3 : 4 Given: Our given number is 67x2y Concept used: If the sum of the digits of the number is divisible by 9 then the number is divisible by 9 Calculation: Our given number is 67x2y Sum of digits of number = 15 + x + y The value of x + y ≥ 3 And x + y ≤ 4 Possible numbers of pair are (0, 3), (3, 0), (1, 2), (2, 1) ∴ The number of possible pairs is 4 |
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