There are 25% as many white balls as blue balls in Tammy's collection of balls. The number of silver balls is 35% fewer than the number of blue balls. There are 312 more silver balls than white balls.

1. Find the total number of balls in the collection.
2. What percentage are the number of blue balls as compared to the number of silver balls? Leave your answer as a mixed number in its simplest form.

White	Blue	Silver
1x5	4x5
	20x1	13x1
5 u	20 u	13 u

(a)
25% = ²⁵₁₀₀ = ¹₄

100% - 35% = 65%
65% = ⁶⁵₁₀₀ = ¹³₂₀

The number of blue balls is the repeated identity. Make the number of blue balls the same.  LCM of 4 and 20 is 20.

Number of more silver balls than white balls
= 13 u - 5 u
= 8 u

8 u = 312

1 u = 312 ÷ 8 = 39

Total number of balls in the collection
= 5 u + 20 u + 13 u 
= 38 u
= 38 x 39
= 1482

(b)
Percentage of the number of blue balls as compared to the number of silver balls
= ²⁰₁₃ x 100%
= ²⁰⁰⁰₁₃ %
= 153¹¹₁₃ %

Answer(s): (a) 1482; (b) 153¹¹₁₃ %