Question

X
DO
N + a2 + b2 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​

Answer 1

Answer:

answer the N value is 484