Here's the scenario....

There are two Painters...

Painter A can paint a house in 3 hours

Painter B can paint a house in 5 hours

If

Painter A & Painter B paint the same house,

at the same time,

how long will it take to finish painting it?

happy brainstorming!!

## 19 comments:

2 hours i guess..

hehe..

tu pun klau painter B x menyusahkan painter A smpai kena buat keja lama2..

(3+8)/8 eh?

how did you know?..

sorry...

try again... good try

:P

the answer needs a little maths..

1 7/8 hours???

owh.. math ke..

kalau ikut logik cmne??

painter a wat kje 3 jam..

painter b 5 jam..

klau cat umah yang sama(gotong-royong) pada waktu yang sama..

painter b mampu siapkan kurang dari 3 jam coz painter b pun cat gak..tempoh mereka berdua pasti kurang dari 3jam..

he3~

'secara logiknya'

memang la kurang 3 jam... tapi nak jawapan yang tepat... how long...

>> uisdfyt89 <<

how did you get that answer??

emmm...

1 hour 40 minutes...

right??

ok... maybe it was my fault..

i'd like an answer, and the logic behind the answer, how the answer was obtained....

i would say about two hours. in one hour painter A would have painted 1/3 of the house while painter B 1/5 of the house. so together in two hours they would have painted 16/15 of the house(we could assume the extra 1/15 as the lawn.huhu)

damn!!

this is such a diff question.

but not 4 d SPM mathematics top scorer.

its exactly 1 hr and 52 min 30 secs

hahaha

ak tibai jer..

ammar.. you're on the right track there... but we're only concerned on the house... there is no lawn... how much less than 2 hours?

TepT... of coz it's diff.. that's why i posted it.. huhu.. nice guess... but sorry to say, try again...

cukup sng jawapannya...cuma aku tidak dpt memberitahu selagi zafran tidak menyatakan jawapannya

sayalah pengasas soalan ni..

sorry TepT... betul jawapan ko...

1 hour 52 minutes 30 seconds

Cangratulations to TepT!!!

Congratulations to uisdfyt89 too!... the 1st to get the answer actually, cuma jwpan dia dlm friction... x prasan the 1st time

15/8 = 1.875 hours = 1 hour 52 min 30 sec

damnit..pehal aku x kira tol2 tadi.

ahahaaa..

=D>

tq2..

2 d one whos ansd in friction, u got exactly d same idea as i did,

bt we dunt look at our watch by friction, i mean, in minute friction.

but anyway..

congratulations to evrybody..

=)

yg ni punye blh thnla, tp yg brainstorm 1 tu mmg blur..

huhu... yeah the 1st is very challenging... mmg respect rr sape leh jawab sendiri...

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