A figure shows the top view of a solid made of unit cubes as a 3 times 3 square. The number in each cell indicates the height of cubes at that position: begin matrix 2 & 1 & 2 1 & 2 & 1 2 & 1 & 2 end matrix . What is the total number of unit cubes in the solid?

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EEJ MAIN Aptitude QUESTION #11033

Question 1

A figure shows the top view of a solid made of unit cubes as a $3 \times 3$ square. The number in each cell indicates the height of cubes at that position: $\begin{matrix} 2 & 1 & 2 \\ 1 & 2 & 1 \\ 2 & 1 & 2 \end{matrix}$. What is the total number of unit cubes in the solid?

$12$
$14$✔️
$16$
$18$

Correct Answer Explanation

Summing all heights: $2+1+2+1+2+1+2+1+2 = 14$. Each unit in the height count represents one unit cube. Total = $14$ unit cubes.

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