turkey-yks 2012 Q9

turkey-yks · Other · lys1-math Arithmetic Sequences and Series Compute Partial Sum of an Arithmetic Sequence

The sum of all two-digit natural numbers with digit A in the units place is 504. What is A?
A) 5
B) 6
C) 7
D) 8
E) 9

The sum of all two-digit natural numbers with digit A in the units place is 504. What is A?

A) 5\\
B) 6\\
C) 7\\
D) 8\\
E) 9