If the fractions are arranged in ascending order, what will be double of the fraction at the second last place? 1/4, 1/7, 1/8, 1/2, 1/5

2 tens + 3 units + 5 hundredth + 8 one tenth = ?

The sum of two numbers is 39.62. If one number is 1.259 then what will be the other number?

If the difference between two decimal fractions is 4.585 and one of the fractions is 3.256, then what is the other decimal fraction?

What is the difference between the first and the last number if 5.435, 5.084, 5.123, 5.064 are arranged in ascending order.