Question

A alone can do a piece of work in 10 days and B alone can do it in 15 days. In how many days will A and B together do the same work ? (1 Point) 5 days ,6 days ,8 days​

Answer 1

Answer:

6days please mark it brainliest

Answer 2

Answer:

$\huge \mathfrak \pink{given}$

A can do the piece of work in 10 days

B can do that piece of work in 15 days

$\huge \mathfrak \pink{to \: find}$

In how many days the work can be done by them together?

$\huge \mathfrak \pink{solution}$

Number of days A required to do the piece of work = 10 days

Number of days B required to do the piece of work = 15 days

$\tt \: work \: done \: by\: a \: in \: 1 \: day \: = \frac{1}{10}$

$\tt \: work \: done \: by \: b \: in \: 1day \: = \frac{1}{15}$

Work done by both (A + B) together =

$\huge \frac{1}{10} + \frac{1}{15} = \frac{10}{60} = \frac{1}{6}$

(take out the LCM )

$\blue{ - - - - - - - - - - - - - - }$

$\boxed{they \: can \: do \: the \: work \: in \: 6day}$