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These questions are based on the given 3-digit numbers.
732 517 293 315 638
If ‘2’ is added to the first digit of all even numbers and ‘2’ is subtracted from the third digit of all odd numbers. In how many numbers thus formed will a digit appear twice ?
Numbers : 732 517 293 315 638
If ‘2’ is added to the first digit of all even numbers and ‘2’ is subtracted from the third digit of all odd numbers, new numbers :
= 932 , 515 , 291 , 313 , 838
Thus, in three numbers (5,3,8) appear twice.
=> Ans - (E)
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