⁵₈ of Pierre's savings is equal to ²₃ of Bobby's savings. The difference in their savings is equal to ¹₆ of Daniel's savings. Pierre saves $150 more than Daniel. Find the total amount of savings of all 3 boys.
⁵₈ Pierre's savings = ²₃ Bobby's savings
¹⁰₁₆ Pierre's savings = ¹⁰₁₅ Bobby's savings

Pierre's savings : Bobby's savings 
16 : 15

Difference in the savings of Pierre and Bobby
= 16 u - 15 u
= 1 u

1 u = ¹₆ Daniel's savings

Daniel's savings
= 1 ÷  ¹₆
= 1 x  ⁶₁ 
= 6 u

Pierre : Bobby : Daniel
16 : 15 : 6

Difference in the savings between Pierre and Daniel
= 16 u - 6 u
= 10 u

10 u = 150

1 u = 150 ÷ 10 = 15

Total amount of savings
= 16 u + 15 u + 6 u
= 37 u
= 37 x 15
= $555

Answer(s): $555