Harry can complete $\dfrac{1}{4}$ of a work in 5 days & Joe can complete $\dfrac{1}{5}$ of the same work in 6 dyas. How long would both of them take to complete the work, if they work together ?

Question

anonymous · Answer

try this way of thinking:
H can run 1/4 per 5 days 
so $$\frac{ 1 }{ 4 } \div5$$= how long he can run per day

anonymous · Answer

do you think this inspire you sth?
if not we'll keep discuss step by step

jiteshmeghwal9 · Answer

sorry but I'm nt getting it :(

jiteshmeghwal9 · Answer

@ranxu6j3

anonymous · Answer

that's ok
so Harry's speed would be 1/20 per day
and  Joe 1/30 per day (1/5 div 6)

anonymous · Answer

can you agree with this?

jiteshmeghwal9 · Answer

yup !

anonymous · Answer

great
in this way, you can assume the whole work =1 
then 
when they work together 
the speed becomes  1/20 +1/30 =1/12 per day
so they can finish 1/12 of the work per day
then can you think of it?

jiteshmeghwal9 · Answer

But in how many days will they complete their work together ?

anonymous · Answer

they can finish 1/12 of the work per day
so, 1 div 1/12= 12 days

jiteshmeghwal9 · Answer

$$1 \div \dfrac{1}{12}=12$$ ohh! i gt it thanx :)

anonymous · Answer

OH THAT'S GREAT

jiteshmeghwal9 · Answer

Just a little slip from mind :P

anonymous · Answer

can you agree with this way of thinking?
it doesn't  matter, people always slip from mind

jiteshmeghwal9 · Answer

yes

anonymous · Answer

good ^^

jiteshmeghwal9 · Answer

:)