There are 25% more red beads than brown beads in a bag. After Daniel removed 20% of the red beads and increased the number of brown beads by 35%, there are now 56 fewer red beads than brown beads. Find the number of brown beads at first.

	Red	Brown
Before	5 u	4 u
Change	- 1 u	+ 1.4 u
After	4 u	5.4 u

Number of red beads in percentage
= 100% + 25%
= 125%

125% = ¹²⁵₁₀₀ = ⁵₄

Number of red beads that Daniel removed
= 20% x 5 u
= ²⁰₁₀₀ x 5 u 
= 1 u

Number of brown beads that Daniel increased 
= 35% x 4 u
= ³⁵₁₀₀  x 4 u
= 1.4 u

Number of red beads in the end
= 5 u - 1 u
= 4 u

Number of brown beads in the end
= 4 u + 1.4 u
= 5.4 u

Number of fewer red beads than brown beads in the end
= 5.4 u - 4 u 
= 1.4 u 

1.4 u = 56

1 u = 56 ÷ 1.4 = 40

Number of brown beads at first
= 4 u
= 4 x 40
= 160

Answer(s): 160