Choose the correct alternative to complete the series: $....be...bb....aabc$

The following questions are based on the five three-digit numbers given below:
$972, 526, 487, 359, 251$
If the positions of the first and second digits are interchanged,which of the following will be third if they are arranged in ascending order?

Fill in the blank space for the given series with the correct alternative.
$0, 2, 3, 5, 8, 10, 15, 17, 24, 26, (\ldots)$

If the digits of the number $26839514$ are arranged in descending order,the position of how many digits will remain unchanged?

Study carefully the following arrangement of letters, digits and symbols to answer these

questions.

$M, 7 , \# , 8, L ,P ,@ ,Q ,N ,\beta ,T ,Y ,3 ,2 ,= ,E ,\$ ,4 ,9 ,*, G ,H ,5$

If all the numbers are deleted from the arrangement, then which of the following will be fifth to the right of the $13^{th}$ element from the right end?

These questions are based on the following set of numbers.
$738, 495, 329, 653, 849$
If $1$ is added to the first digit of each number and $1$ is subtracted from the second digit,which number will be the largest?