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$N+a_{2}+b_{2}$
is a three-digit number which is divisible by 5.
$a=10x+y$
and
$b=10x+z,$
where z is a prime number, and x and y are natural numbers. If
$a+b=31,$
find the value of N.
A
565
B
485
C
505
D
485 or 505
Medium
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Solution
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Correct option is D)
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