Question

Math test , if 9 = 90 , 8 = 72 , 7 = 56 , 6 = 42 , 3 = ?

Answer 1

Answer:

12

Step-by-step explanation:

Answer 2

Answer:

3 = 12

Step-by-step explanation:

9 * (9+1) = 9 * 10 = 90

8 * (8+1) = 8 * 9 = 72

7 * (7+1) = 7 * 8 = 56

6 * (6+1) = 6 * 7 = 42

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Optional Steps (for bigger numbers):

Hence, the formula is

a = b(b+1)

= b² + b

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Hence,

3 * 4 = 12

Hence,

3 = 12

Hope this helps and be sure to have a wonderful time ahead! :D