The UK government has approved the Kovid-19 vaccine made by

Is light year unit?

किस क्रम में मुहावरा है -

Which state is to rename 'Khwaja Moinuddin Chishti Urdu, Arabi-Farsi University' as 'Khwaja Moinuddin Chishti Languages University'?

Who won 2020 PEN/Hemingway Award in US for her debut novel 'A Prayer for Travelers'?

Direction: Study the following information to answer the given questions .
 A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement. All the numbers are two - digit numbers.
Input : Sadness candy 81 family 25 radical 31 gain 1935
step I : 31 candy 81 family 25 radical gain 19 35 sadness
 step II : 31 25 candy 81 family gain 19 35 radical sadness
step III : 31 25 35 candy 81 gain 19 family radical sadness
step IV : 31 25 35 81 gain 19 candy family radical sadness
Step V : 31 25 35 81 19 gain candy family radical  sadness
Step VI : 4 7 8 9 10 gain candy family radical  sadness
Step VI  is the last step of the rearrangement of the above input .  As per the rules followed in the above steps , find out in each of the questions the appropriate step for the given input .
Input : impatient 92 73 lack 68 paint economic 58 79 campus 69 satisfy . 

Which of the following would be at the 6th position from the left in Step IV ? 

In ∆ABC, ∠B is a right angle, AC = 6cm, and D is the mid-point of AC. The length of BD is: