Question 467891
Add their rates of working to get
their rate working together
Let A's rate = 1 job / {{{a}}} days
Let B"s rate = 1 job / {{{b}}} days
given:
{{{ 1/a + 1/b = 1/6 }}}
{{{ 1/a = 1/10 }}}
{{{ 1/10 + 1/b = 1/6 }}}
{{{ 1/b = 10/60 - 6/60 }}}
{{{ 1/b = 4/60 }}}
{{{ 1/b = 1/15 }}}
B can do 1 job in 15 days