Question

PAY ATTENTION!!!!!
PLEASE ANSWER!!!!!

Answer 1

This is ur answer. Hope u understood

Answer 2

$hey \: here \: is \: your \: answer$
A can finish a work in 8days
work done by A in 1 day =
$\frac{1}{8}$
B can finish a work in 10 days
work done by B in 1 day =
$\frac{1}{10}$
C can finish a work in 16days
work done by C in 1 day =
$\frac{1}{16}$
work done by ( B + C ) in 1 day =
$\frac{1}{10} + \frac{1}{16}$
=
$\frac{13}{80}$
work done by ( B + C ) in 4 days =
$4 \times \frac{13}{80}$
=
$\frac{13}{20}$

remaining work =
$1 - \frac{13}{20}$
=
$\frac{7}{20}$
work done by A + B in 1 days =
$\frac{1}{8} + \frac{1}{10}$
=
$\frac{9}{40}$
remaining work done by ( A + B ) =
$\frac{7}{20} \div \frac{9}{40}$
=
$\frac{14}{9}$