This weeks question involves the concept – Internal Proportion Transfer that begins with a difference.

This concept is one that many students may find challenging when faced with them. Proportion Transfer is known to be one of the most challenging concepts, due to the plethora of ways Proportion Transfer can be tested.

At PSLEMath, we have categorised these into 4 groups and which we systematically teach our students as early as when they are in P5 in preparation for their ultimate exams PSLE.

– External Proportion transfer that begin with total.

– External Proportion transfer that begin with difference.

– Internal Proportion transfer that begin with total.

– Internal Proportion transfer that begin with difference.

Of these 4 types “Internal Proportion transfer that begin with differenceā€¯ is the most challenging to solve. This is due to the fact that it requires meticulous model drawing in order to solve.

For this week’s question of the week, we have chosen to go with Internal Proportion Transfer that begins with a difference, we categorise it as an Enhanced Difficulty Type 4 question. Have a go at this sample question and we wish you all the best at the mastery of this important concept. Stay tuned for more questions in the coming weeks !

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#4. Anna had 280 fewer clips than Yenni. On day 1, Yenni gave 1/4 of her clips to Anna. On day 2, Anna returned 1/5 of all her clips to Yenni. On day 3, Yenni gave half her clips to Anna. In the end, Anna had 520 more clips than Yenni. How many clips did Yenni have at first?

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