Question
Download Solution PDFFind the least value digit which is assigned to * so that the number 1972*471 is divisible by 9.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFFind the least value digit which is assigned to * so that the number 1972*471 is divisible by 9.
Formula used:
A number is divisible by 9 if the sum of its digits is divisible by 9.
Calculation:
Sum of digits = 1 + 9 + 7 + 2 + * + 4 + 7 + 1
⇒ Sum of digits = 31 + *
To be divisible by 9, (31 + *) should be divisible by 9
⇒ Possible values for *: 5 (as 31 + 5 = 36, which is divisible by 9)
∴ The correct answer is option (2).
Last updated on Jul 15, 2025
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