Question

The ratio of Dina’s bathing suits to Yana’s bathing suits was 4:1. After Dina threw out 26 of her bathing suits, she had 2 less than Yana. How many bathing suits did Dina have at first?

Answer 1

Dina : Yana : Difference 
4 :1 : 4-1
4: 1: 3

she threw away 26 and is now 2 less (which means if she has threw away 24, they wil have the same)

Given from the ratio above, the difference is 3 parts
3 parts = 24
1 part = 24 ÷ 3 = 8
4 parts = 8 x 4 = 32

Dina had 32 at first

Answer 2

All it is, is 4:1 - 2
The answer is 
Decimal form: 3.5
Mixed number form: 3 1/2
Fraction form: 7/2