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A six-digit number 5678ab is divisible by 4 where a and b are digits satisfying the condition \(0 <{\rm{a}} + {\rm{\;b}} < 7\). What is the number of possible pairs of values of (a, b)?1. 82. 53. 94. 7 |
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Answer» Correct Answer - Option 4 : 7 Given: The given six digit number is 5678ab which is divisible by 4 Concept Used: The number is divisible by 4 if the last two digits of the number are also divisible by 4 Calculation: In the given question the last two digits are ab along with the condition ∴ Possible values of ab will be 60, 40, 32, 24, 20, 12, and 04 only these digits satisfy the given condition So, there are 7 possible pairs Hence, option (4) is correct |
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