Brain Challenge

Week 462 (25th September 2026) 

Week 462 (25th September 2026) 

Amber is eating her breakfast and looking at the ingredients list on the muesli.  

The box contains 800g of muesli.  

In the muesli:  

  • 45% of the mass is rolled oats,  
  • 25% of the mass is seeds,  
  • the mass of dried fruit is 2/5 of the mass of seeds,  
  • the remainder is almonds.  

Calculate the percentage of almonds in the muesli.  

Answer:  

Rolled oats = 45%  

Seeds = 25%  

Dried fruit = 2/5 x 25% = 10%  

Total = 45% + 25% + 10% = 80%  

Almonds= 100% – 80% = 20%  

Answer = 20%

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