17. which is the 4 digit number whose second digit is thrice the first digit and 3'rd digit is sum of 1’st and 2'nd and last digit is twice the second digit. 1. 2674 2. 1349 3. 3343 4. 3678
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2. 1349
1×3=3 THEN 1+3=4 AND THE LAST 3×3=9
IT MAKES 1349
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