White and black blocks are stacked in a vertical column so that no two blocks of the same color are adjacent. If there

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White and black blocks are stacked in a vertical column so that no two blocks of the same color are adjacent. If there are \(247\) blocks in the stack, how many white blocks are there in the stack?

1. The top block in the stack is white
2. There are \(5\) white blocks in the \(10\) blocks at the bottom of the stack

OA A
Source: — Data Sufficiency |