Question

ques 15 plss. . ..........

Answer 1

Heya!!!


Here's ur answer..
Hope it may help you..
Thank you.....

Answer 2

Ok....
Let us take no.of days present as x
And no of days absent be y
ATQ
200x-20y=3800
10x-y=190

And obviously x+y=30
X=30-y
10(30-y)-y=190
300-10y-y=190
-11y=-110
Y=10
X=30-10
X=20days

Pleasw mark this answer as brainliest