Past exam solution p6 demo 2010 12 12

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Past exam solution p6 demo 2010 12 12

  1. 1. Proudly Presents<br />Heuristics Approach<br />Model Approach<br />Solving Challenging Primary Mathematical Problems<br />Adrian Ng<br />Principal Trainer<br />
  2. 2. Past School Exam solution (P6)<br />2<br />
  3. 3. 3<br />Anglo Chinese School (Primary) / P6 Mathematics 2008 / Combined Preliminary Examination / Paper 2<br />
  4. 4. At first a fruit stall, the number of oranges is the same as the number of apples at firs. 6 oranges and 14 apples were sold. As a result, the ratio of the number of oranges to the number of apples became 7 : 5.<br /> a) How many apples were left?<br /> b) How many fruits were there at first?<br />4<br />Orange<br />Apple<br />
  5. 5. At first a fruit stall, the number of oranges is the same as the number of apples at firs. 6 oranges and 14 apples were sold. As a result, the ratio of the number of oranges to the number of apples became 7 : 5.<br /> a) How many apples were left?<br /> b) How many fruits were there at first?<br />5<br />Orange<br />Apple<br />-14<br />-6<br />6<br />14<br />
  6. 6. At first a fruit stall, the number of oranges is the same as the number of apples at firs. 6 oranges and 14 apples were sold. As a result, the ratio of the number of oranges to the number of apples became 7 : 5.<br /> a) How many apples were left?<br /> b) How many fruits were there at first?<br />6<br />Orange<br />Apple<br />7u+6 = 5u+14<br />-14<br />-6<br />2u = 8<br />6<br />14<br />1u = 4<br />7u<br />5u<br />
  7. 7. At first a fruit stall, the number of oranges is the same as the number of apples at firs. 6 oranges and 14 apples were sold. As a result, the ratio of the number of oranges to the number of apples became 7 : 5.<br /> a) How many apples were left?<br /> b) How many fruits were there at first?<br />7<br />Orange<br />Apple<br />7u+6 = 5u+14<br />-14<br />-6<br />2u = 8<br />6<br />14<br />1u = 4<br />7u<br />5u<br />(a) 5u = 5x4 = 20<br />
  8. 8. At first a fruit stall, the number of oranges is the same as the number of apples at firs. 6 oranges and 14 apples were sold. As a result, the ratio of the number of oranges to the number of apples became 7 : 5.<br /> a) How many apples were left?<br /> b) How many fruits were there at first?<br />8<br />Orange<br />Apple<br />7u+6 = 5u+14<br />-14<br />-6<br />2u = 8<br />6<br />14<br />1u = 4<br />7u<br />5u<br />(a) 5u = 5x4 = 20<br />(b) 5u+14 = 5x4 +14 = 34<br />34x2 = 68<br />Ans: <br />20 apples<br />68 fruits<br />
  9. 9. Thank You<br />9<br />

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