A family in Singapore part 7 (Math Question)


You can click here and read the posting on A family in Singapore about Sarin’s family.

Lower primary school mathematics question LPQ49

Sarin’s father is 52 years old and his mother is 46 years old. How many years ago was Sarin’s father thrice as old as his mother?


            Draw a model based on their ages

            From the model  

            2 units = 52 – 46 = 6

            1 unit = 3 years

             Father was thrice as old as mother at 46 – 3 = 43 years ago.

More Problem Sum questions. Click here…….


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