A landscaper is designing a wall made of white bricks. The pattern consists of 130 white bricks in the bottom row, 110 white bricks in the second row, and 90 white bricks in the third row. How many white bricks will the 6th row have?
Answer
A
10
B
30
C
80
D
230
Explanation
The number of bricks decreases by 20 with each row: 130, 110, 90, 70, 50, 30. So the 6th row has 30 white bricks, which is choice B.
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