Gladdie's answer to Norain's Primary 6 Maths Data Analysis Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Gladdie
Gladdie's answer
4 answers (Tutor Details)
1st
Hope it helps
Norain
Norain
4 years ago
How to get 100u?
Any easier way?
Gladdie
Gladdie
4 years ago
It means,
To let 100u represent total Mr Fong salary.

Since 2/5 of Mr Fong salary was given to his Wife,
2/5 x 100u

Since 1/4 of Mr Fong salary was given to his Daughter,
1/4 x 100u

Remaining for himself in units = 100u - Wife’s units - Daughter units

Since it says that $2430 is the remaining amount,
we can say that the remaining units will represent(“equals”) $2430.

Then you can find how much is 100u which is Mr Fong salary.