प्लीज आंसर द क्वेश्चन गोल्ड प्लीज प्लीज आई विल गिव यू थैंक यू एक्सप्लेन लिस्ट प्लीज प्लीज प्लीज प्लीज आंसर द क्वेश्चन बॉयज
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Step-by-step explanation:
A number is divisible by 9 only when sum of it's digit is divisible by 9.
1. let the no. required be x.
Then, 2+x+1+8+9 = 20+x
To make it divisible by 9, we must add 7.
So, the required no = 7
2. let the no. required be x.
Then, 9+x+9+1+8 = 27+x
Since, 27 is already divisible by 9.
So, The required no. = 0
3. let the required no. be x.
Then, 5+4+x+5+1+8 = 23+x
To make it divisible by 9, we must add 4.
So, the required no. = 4
4. let the required no. be x.
Then, 9+0+8+x+1+8 = 26+x
To make it divisible by 9, we must add 1.
So, the required no. = 1
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