Mathematics
Grade6
Easy

Question

When Mark is 4, Amber is _____________ years old.

  1. 6
  2. 7
  3. 8
  4. 9

hintHint:

Note that the difference of age between Mark and Amber remains constant over time. So, if we add the difference of their ages with any one of their ages, we will get the age of the other ones.

The correct answer is: 8


    Step 1 of 1:
    Observe that when Mark is 2, Amber is 6. So, the difference of their ages is 6 - 2 = 4.
    We can verify this by the following that, when Mark is 3, Amber's age = 3 + 4 = 7; and that matches with the age given in the table.
    Thus, when Mark is 4, Amber's age = 4 + 4 = 8.
    Final Answer:
    The correct choice is-- D. 8

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