Mathematics
Grade6
Easy

Question

If a = 20 and b = 0, then what is the value of a × b?

  1. 20    
  2. 10    
  3. 0    
  4. 200    

Hint:

This is an algebraic expression. An algebraic expression consists of two components: a variable and a constant. A variable is a quantity that doesn't have a fixed value. It takes value as per the given conditions. It is generally denoted by an alphabet. A constant is a quantity with a fixed value. In the given question, values are assigned to the variables a and b. We have to find the final value after performing the operation.

The correct answer is: 0


    The given expression is a × b.
    In this question, values are assigned to a and b. We have to substitute the given values in the above expression and perform the operation. After performing the operation, we will get the final value.
    The value of a is 20 and the value of b is 0. So we can write the above expression as follows:
                                               a × b = (20) × (0)
    The product of 20 gives zero, as any number multiplied with zero gives zero.
    Therefore, the equation becomes
                                             a × b = 0

    So, the option (c), which is '0' , is the right option.

    We have to substitute the value of variables as per given in the question. Under different conditions the value of variables is different.

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