Mathematics
Grade6
Easy

Question

Sonata bought vegetables weighing 10 kg. Out of this 3 kg 500 g of is onions, 2 kg 75 g is tomatoes, and the rest is potatoes. The total weight of the potatoes is _________.

  1. 9.500 kg    
  2. 1.425 kg    
  3. 4.425 kg    
  4. 5.575 kg    

Hint:

The unitary method is a fundamental concept of Mathematics and makes it convenient to solve various sums. This method generally involves finding the value of a unit in the given terms, using which the value of the given quantity of units can be calculated.

The correct answer is: 4.425 kg


    Weight of vegetables bought = 10 kg
    Weight of onions = 3 kg 500 g
    = 3 kg + 500 g
    equals 3 k g plus fraction numerator 500 over denominator 1000 end fraction k g
    1 g equals fraction numerator 1 over denominator 1000 end fraction k g
    = 3 kg + 0.500 = 3.500 kg
    Weight of tomatoes = 2 kg 75 g
    equals 2 k g plus fraction numerator 75 over denominator 1000 end fraction k g
    = 2 kg + 0.075 = 2.075 kg
    Weight of potatoes = 10 kg – (3.500 kg + 2.075 kg)
    = 10 kg – 5.575 kg = 4.425 kg
    Weight of potatoes = 4.425 kg

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