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Each of the digits in the number 813924765 is arranged in ascending order from left to right. The position of how many digits will remain unchanged as compared to that in the original number?

ATwo

BNone

COne

DThree

Answer:

A. Two

Read Explanation:

The position of two digits will remain unchanged.

  1. Write down the original number:
    8 1 3 9 2 4 7 6 5

  2. Arrange the digits in ascending order (from 1 to 9) directly underneath:
    1 2 3 4 5 6 7 8 9

  3. Compare each position to find the matches:

    • Position 3: 3 remains 3

    • Position 7: 7 remains 7

All other digits change their positions. Therefore, exactly 2 digits (3 and 7) stay in the same place.


Related Questions:

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In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer.

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Conditions:

  • (i) If the first element is an even number and the last element is also an even number, the codes for these two (the first and the last elements) are to be interchanged.

  • (ii) If the second element is an even number and the fifth element is a symbol, the codes for these two (the second and the fifth elements) are to be interchanged.

  • (iii) If the fourth element is a symbol and the sixth element is also a symbol, both these elements (the fourth and the sixth elements) are to be coded as N.

Question:

4 6 $ 7 4 # @ 2

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. C G K, G K O, KO S, O S W, ?
If 4 $ 4 # 2 = 8 and 3 $ 8 # 2 = 12, then 7 $ 6 # 3 = ?
This question is based on the following three-letter words: (Left) CAR HAT FED EYE (Right) How many letters are there between the second letter of the first word from the left and the first letter of the first word from the right?