P4 Maths

Minu SG

Hi,

I need help to solve following problem sum for p4 level using model approach

There were 4 times as many men as women in a park. After 16 women left the park, there were 12 times as many men as women remained in the park. How many men were there in the park ?

Xpoloppx SG

basically, if men is 4times the women,

M [---][---][---][---]

W [---]

den if 16 women left the park,

M [-][-][-]ll[-][-][-]ll[-][-][-]ll[-][-][-]

W [-][16]

ratio of men to woman is 12 : 1,

if u see closely, 2 of [-] equals to 16,

(16/2) x 12 = 96(ANS).

u understand?

Minu SG

Thanks I've solved this problem with same method but topic 'Ratio' is not in syllabus for p4 level...do u have any other method ?

Forbiddensinner SG

Thanks I've solved this problem with same method but topic 'Ratio' is not in syllabus for p4 level...do u have any other method ?

You do not need to know ratio for this question.

All you need to know is that:

2 units = 16 people

1 unit = 16/2 = 8 people

12 units = 8 x 12 = 96 people

Xpoloppx SG

0.o another way is algebra method.

but u likely wouldn't know that why to get 16 divide by two, then times 12 without the finding the ratio. if u know how to use the ratio method, just use it in exam, the teacher won't mark you wrong. :).