Subject: General Aptitude · Chapter: Number System · Exam: · Marks: · Difficulty:
Which one of the following numbers is divisible by 11?
(a)4823718
(b)4832718
(c)8423718
(d)8432718
Answer
Answer (as printed): B
Explanation
For 4823718 we have $(8+7+2+4)-(1+3+8)=(21-12)=9$, which is not a multiple of 11. ∴ 4823718 is not divisible by 11. Consider the number 4832718. We have $(8+7+3+4)-(1+2+8)=(22-11)=11$, which is a multiple of 11. Hence, 4832718 is divisible by 11.
Explanation as extracted from the printed page; notation may be imperfect.