If 5472 = 9, 6342 = 6 and 7584 = 6, then what is 9236 ?
2
3
4
5
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2019
1) 5472 = 9
Let’s try operations on the digits: 5, 4, 7, 2.
Sum of digits: 5 + 4 + 7 + 2 = 18. The result is 9. The digital root of 18 (1+8) is 9.
2) 6342 = 6
Digits: 6, 3, 4, 2.
Sum of digits: 6 + 3 + 4 + 2 = 15. The result is 6. The digital root of 15 (1+5) is 6.
3) 7584 = 6
Digits: 7, 5, 8, 4.
Sum of digits: 7 + 5 + 8 + 4 = 24. The result is 6. The digital root of 24 (2+4) is 6.
The pattern appears to be calculating the sum of the digits of the number and then finding the digital root (summing digits repeatedly until a single digit is obtained).
Now, apply this pattern to the number 9236:
Sum of digits: 9 + 2 + 3 + 6 = 20.
Find the digital root of 20: 2 + 0 = 2.
Therefore, 9236 = 2 based on the established pattern.