What will be the least value of x so that the 5-digit number 627x5 becomes divisible by 9?
[SSC CHSL 1 JULY 2024 MORNING SHIFT]
Answer
Correct Answer : d ) 7
Explanation :Divisibility Rule of 9
If the sum of digits of a number is divisible by 9, then the number will also be divisible by 9.
If 627x5 is divisible by 9, the sum of digits will also be divisible by 9
Sum of digits of 627x5 = 6 + 2 + 7 + x + 5
Sum of digits of 627x5 = 20 + x
If x = 0, 20 + x = 20, not divisible by 9.
Now, x will be any value from 0 to 9.
after 20, 27 will be divisible by 9, when 20 + x = 27
20 + x = 27
x = 7
Hence, (d) is the correct answer.
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