10% of Vaidev's savings was $8 more than 40% of Albert's savings. After Vaidev spent ²₅ of his savings and Albert spent 40% of his savings, Albert had $156 less than Vaidev. How much was Albert's saving at first?

	Albert	Vaidev
Before	5 u	20 u + 80
Change	- 2 u	- 8 u - 32
After	3 u	12 u + 48
Comparing Albert and Vaidev in the end		156 more

10% = ¹⁰₁₀₀ = ¹₁₀

40% = ⁴⁰₁₀₀ = ²₅

¹₁₀ Vaidev = ²₅ Albert + 8 

Make the numerators the same. LCM of 1 and 2 is 2.
 
1x210x2 Vaidev = 2x15x1 Albert + 8 
220 Vaidev = 25 Albert + 8 

Simplify the fractions.
¹₂₀ Vaidev = ¹₅ Albert + 4

Let ¹₅ Albert be 1 u.

Albert's savings at first = 5 u

¹₂₀ Vaidev = ¹₅ Albert + 4
Let ¹₂₀ Vaidev be 1 u + 4.

Vaidev's savings at first
= 20 x (1 u + 4) 
= 20 u + 80

Savings that Albert spent
= 40% x 5 u
= ⁴⁰₁₀₀ x 5 u
= 2 u

Savings that Vaidev spent 
= ²₅ x (20 u + 80)
= 8 u + 32 

Albert had $156 less than Vaidev in the end. If another $156 was given to Albert, the amount that each had in the end would be the same.

12 u + 48 = 3 u + 156 
12 u - 3 u = 156 - 48
9 u = 108

1 u = 108 ÷ 9 = 12

Savings that Albert had at first
= 5 u 
= 5 x 12
= $60

Answer(s): $60