Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 126)
126.
If the number 653 xy is divisible by 90, then (x + y) = ?
Answer: Option
Explanation:
90 = 10 x 9
Clearly, 653xy is divisible by 10, so y = 0
Now, 653x0 is divisible by 9.
So, (6 + 5 + 3 + x + 0) = (14 + x) is divisible by 9. So, x = 4.
Hence, (x + y) = (4 + 0) = 4.
Discussion:
13 comments Page 2 of 2.
Shyam said:
9 years ago
Not understand the derivation. Please help me to get it.
SOURABH SINGH said:
1 decade ago
(14+x) is divisible by 9. But how can we get x=4?
Ramesh said:
9 years ago
Please help me to find the co factors.
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