20 9 8 11 21 ?

Wha will be th output of ine following script?
#!/in/bash
secondLoop="A B C D E F G"
counter=0

for a in 6 7 8 9
do
for b in "$secondLoop"
do
let "counter+=1"
done
done
echo "This script has $count

Q) if 764xy is divisible by 90 then x+y=

a)1
b)3
c)5
d)6

If we permute 6 Letters of the word 'SYSTEM', the number of permute words with a vowel at the third place are:
a) 720
b)120
c)60
d)24

find the number
if 1 = 2
2 = 10
3 = 30
4 = 68
5 = ?

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