
By: kellywww (offline) Monday, September 27 2010 @ 04:28 AM CDT (Read 2007 times)



kellywww 
Can anyone help with this P4 math question?
1/3 of the pupils in the class wanted to go Japan.
1/4 of the pupils in the class wanted to go Korea.
1/6 of the pupils in the class wanted to go Thailand and the rest wanted to go Malaysia.
There were 3 more pupils who wanted to go Malaysia than Thailand.
Find the total number of the pupils in the class.
Answer given is: 3 x 12 = 36 pupils.
Thks!

Junior
Registered: 12/31/06 Posts: 21





By: kellywww (offline) Monday, September 27 2010 @ 04:34 AM CDT



kellywww 
Please ignore my question, I realised how to solve it already. Thks!!

Junior
Registered: 12/31/06 Posts: 21





By: shanthi (offline) Monday, October 04 2010 @ 12:05 AM CDT



shanthi 
but pls give solution,so that i too can learn.thanks

Junior
Registered: 12/31/06 Posts: 27





By: suz855 (offline) Monday, October 04 2010 @ 09:35 PM CDT



suz855 
common multiple of 3,4 & 6 is 12 thus choose 12 as the common denominator
Japan > 1/3 = 4/12
Korea >1/4 = 3/12
Thailand > 1/6 = 2/12
Therefore, M'sia > 12/12  (4/12 + 3/12+2/12) = 3/12
Difference betw M'sia and Thailand is 1/12, thus 1/12 = 3 people
3 x12 = 36 total people

Junior
Registered: 12/31/06 Posts: 16





By: shanthi (offline) Tuesday, October 05 2010 @ 08:04 PM CDT



shanthi 

Junior
Registered: 12/31/06 Posts: 27



