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Doctors Medicines MCQs Q&A

  1. Commutative and Distributive
  2. Commutative and Associative
  3. Distributive and Identity
  4. Identity and Associative
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Option 2 : Commutative and Associative

Multiplication is one of the 4 basic operations in mathematics and it has many properties like associative, commutative, identity, and distributive. 

In the above example, commutative and associative properties are followed 

  • Commutative property : a x (b x c) = (a x b) x c 
    • According to the above example 
    • (18 × 25) × 4 = 18 × (25 × 4) 
    • So the student has used the commutative property.
  • Associative property : a x b = b x a 
    • According to the above example 
    • 18 × 100 = 100 x 18 = 1800
    • So the student has used the associative property as well.

Hence the student has used Commutative and Associative Properties. 

Identity property
  • a x 1 = a
Distributive property
  • a(b+c) = ab + ac
  • a(b-c) = ab - ac
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Related Questions

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement: I. Determination is the key to success. If a person determines to achieve a certain goal in his or her life, no one can stop him/her from achieving it. II. Prioritizing various determined goals is another important aspect of decision making. Conclusions: I.  If I determine to achieve three goals in near future, my energy will get divided into three parts and I can never succeed. II. Making a prior plan for achieving those three things I can get near to all my goals.?
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