Question : What is the least possible value of p for which the number 84pp153p is divisible by 9?
Option 1: 2
Option 2: 1
Option 3: 7
Option 4: 5
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Correct Answer: 2
Solution :
A number is divisible by 9 if the sum of its digits is divisible by 9.
Given number = 84pp153p
The sum of digits without including p = 8 + 4 + 1 + 5 + 3 = 21
⇒ The least possible value of p is 2, which will make the sum of the digits 27, which is divisible by 9.
Hence, the correct answer is 2.
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