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3 June, 21:54

Red and gray bricks were used to build a decorative wall.

The number of red bricks/The number of gray bricks was 5/2. There were 175 bricks used in all. How many red bricks were used?

25

125

50

35

+5
Answers (1)
  1. 3 June, 22:18
    0
    lets say

    Red bricks = 5x

    Gray bricks = 2x

    5x + 2x = 175

    7x = 175

    x = 175/7

    x = 25

    Red bricks = (5x) = 5 * 25 = 125

    Gray bricks = (2x) = 2 * 25 = 50
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