Mathematics
Grade-7
Easy

Question

An electron represents a negative charge, write an integer to represent 3 electrons. 

  1. 3
  2. -3
  3. 0
  4. 2

hintHint:

If x is an electron, it can be represented as -x.

The correct answer is: -3


    Given that an electron represents a negative charge. So, three electrons represents thrice the negative charge.
    So, it can be represented as -3, since it posses a negative charge.
    Hence, the correct answer is option b.

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