Question

A B and c working together can do a piece of work in 8 hrs. A alone can do it in to hos & B can do it au hrs. In how many hrs will C alone can do the same work?​

Answer 1

Answer:

please follw me all and give me thanks :D

Answer 2

Answer:

$in \: one \: hour \: b \: can \: do \: \frac{1}{24} th \: of \: work$

$let \: in \: one \: hour \: c \: can \: do \: \frac{1}{x} th \: of \: work$

$\frac{1}{20} + \frac{1}{24} + \frac{1}{x} = \frac{1}{8}$

$\frac{1}{x} = \frac{1}{8} - ( \frac{1}{20} + \frac{1}{24} )$

$\frac{1}{8} - \frac{44}{20 \times 24}$

$\frac{1}{8} - \frac{11}{120}$

$\frac{15 - 11}{120} = \frac{4}{120}$

$\frac{1}{30}$

: C can do the same work in 30 hours .

Hope it will help you