
By: tangara (offline) Monday, January 02 2012 @ 10:32 AM CST (Read 1358 times)



tangara 
Dear forum members,
Happy new year. I would like to know the solution of the question below:
Last month, the ratio of male workers to female workers in a factory was 15:7.
There were 56 female workers in the factory. Some of the male workers were
retrenched this month. As a result, the ratio of the remaining male workers to
female workers became 3:4. How many male workers were there in the factory
this month?
Thanks.

Junior
Registered: 07/31/10 Posts: 26





By: RachelAng (offline) Monday, January 02 2012 @ 10:48 PM CST



RachelAng 
I think it is like this.
F:M
7:15
56: ?
Take 56 divide by 7 = 8.
So 15 x 8 = 120.
So F:M
56:120
New ratio after retrenchment of male worker is
F:M
4:3
No change in the no. of female. So take 56 divide by 4 = 14.
then take 3 x 14 = 42.
F:M
56:42
No. of male workers left = 42.

Newbie
Registered: 01/23/11 Posts: 4





By: samwh (offline) Wednesday, January 04 2012 @ 07:29 PM CST



samwh 
Hi,
See if the attachment helps .

Newbie
Registered: 12/26/10 Posts: 1





By: nisalam (offline) Friday, January 13 2012 @ 12:45 AM CST



nisalam 
Seems like the first ratio is completely irrelevant, given as a red herring to waste the children's time. The second ratio indicates that currently males are 3/4 the number of females. We know there are 56 females. So 3/4 of 56 makes 42.

Junior
Registered: 04/29/10 Posts: 30



