Reasoning: Alphanumeric Series Questions Set 15

Directions (1-5): Study the following letters/numbers/symbols sequence and answer the following questions.

7     2     @     M     N     E      #      9      *       F         H          6          U         A         3        T         5          $       O          8       %        ◇         Q         C        1        P      4        Y       W       Z

1. How many symbols are there in the series, which immediately preceded by a number and immediately followed by a letter?
   A)  One
   B)  Two
   C)  Three
   D) More than three
   E) None of these
   
   View Answer

     Option C
   Explanation: 2@M, 9*F, 5$O
                 
2. If all the symbols are dropped from the series, which letter/number will be 7th to left of 15th letter/number from left end?
   A)  H
   B)  F
   C)  6
   D)  9
   E) None of these
   
   View Answer

     Option A
   Explanation: 15th from left- 7th to left = 8th number/letter from left after dropping all symbols
                 
3. If the position of the first and sixteenth elements, the second and seventeenth elements, and so on up to fifteenth to thirtieth elements, are interchanged. Which letter/symbol/number will be 8th to right of 13th elements from the left end in new arrangement?
   A)  N
   B) # 
   C) 9
   D) E
   E) None of these
       
   View Answer

     Option D
   Explanation: 13th from left+8th to right =21th from left in new arrangement is, E
                 
4. If every third letter/symbol/number from the left end dropped from the series, which letter/symbol/number is 4th to left of 9th from the right  end in new new arrangement?
   A)   U
   B) H
   C)  F
   D)  A
   E) None of these
       
   View Answer

     Option B
   Explanation: 9th from right end+ 4th to left= 13th letter/symbol/number  from the  left end in new arrangement is, H  
                 
5. What is the total number of ‘ the symbols immediately following the letters’ and ‘ the number immediately followed by a letter’ together in the above sequence?
   A)  Four
   B)  Six
   C) Five
   D) seven
   E) None of these
   
   View Answer

     Option C
   Explanation: we have to look for total, letter-symbol and number-letter sequence. And they are total five in above series, E#  6U  3T  1P and 4Y
                 

Directions (6-10)- Following questions are based on the five three digit number given below.

437    543    954     593     754

6. One subtracted from the first digit and two is subtracted from third digit of each of the numbers. What will be the difference between  second digit of the highest number and the sum of first and third digit of lowest number thus formed ?
   A)  4
   B)   5
   C)   3
   D)  2
   E)   1
   
   View Answer

     Option C
   Explanation: New formed series after 1 subtracted form first digit and 2 subtracted from third digit of each number is 335  441  852  491 652, sum of 1st and 3rd digit of lowest number 3+5=8 and 2nd digit of highest number in new formed is 5, so 8-5=3
                 
7. If all the numbers are arranged in descending order from left to right,which of the following will be the product of the first and second digit of the number which is 2nd from left end in new order?
   A)  54
   B)  35
   C)   34
   D)   72
   E)  24
       
   View Answer

     Option B
   Explanation: Descending order from left to right- 954 754  593  543 437, 2nd from left is 754, and 1st ×2nd= 7×5=35
                 
8. What will be the resultant if the 1st digit of highest number is divided by the the 3rd digit of second lowest number?
   A) 1.5
   B) 2
   C)  4
   D) 3
   E)  1
       
   View Answer

     Option D
   Explanation: first digit of highest number is 9, and third digit of second lowest number is 3, so resultant =9÷3=3
                 
9. If the position of first and third digits of each of the numbers are interchanged. What will be the sum of all the digit of the second lowest  number thus formed ?
   A)  19
   B) 17
   C)  20  
   D)  22
   E)  17
       
   View Answer

     Option E
   Explanation:
   After interchanging the position of first and last digit of each number, second lowest in new formed is 395, addition of all digits=3+9+5=17
                 
10. If all the digits in each number are arranged in ascending order within the number, which of the following will form the highest number in the new arrangement of numbers?
    A) 437
    B) 954
    C) 543
    D) 754
    E) 593
    
    View Answer

      Option B