Question P6 Units and parts
Today’s problem — free all day, every step. Every day has one.
Raj, Wei Ling, and Siti packed oranges in the ratio 4 : 6 : 11. Siti packed 140 more oranges than Raj. How many oranges did the three of them pack altogether?
Answer
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Cut one amount into equal shares. One number tells you what a share is worth.
In this one. The 140 oranges is the gap of 7 equal units between Siti's 11 units and Raj's 4 units, so divide 140 by 7 to find the value of 1 unit.
A single amount is split by a ratio, a fraction or a percentage. One extra number gives you the leftover, the difference, or the value of one share.
Children match the given number to the wrong number of shares, using the whole bar when the number covers only the leftover or the difference between two people's shares.
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