exam Maths Puzzle Numerical Ability

Riza was 25 when her 1st son was born.Today, the sum of their ages is 105.How old is Riza and her son now?

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exam Other Question

ok so in math clas we got this assignment! the birthday equation project! my birthday is 11-9-1993 and i need to make 4 equations! please answer in fear of failing math the radius of a circle is shown. wich method would you use to find the diameter of the circle?