Question

Ming writes a number pattern on a slip of paper and hands it to his friend Jack. 24, 21, 23, 20, 22, 19, 21, 18 Jack writes the next number in the pattern and hands the paper back to Ming. What number should Jack write?

Answer 1

SOLUTION

GIVEN

Ming writes a number pattern on a slip of paper and hands it to his friend Jack. 24, 21, 23, 20, 22, 19, 21, 18

Jack writes the next number in the pattern and hands the paper back to Ming.

TO DETERMINE

The number Jack should write

EVALUATION

Here it is given that Ming writes a number pattern on a slip of paper and hands it to his friend Jack 24, 21, 23, 20, 22, 19, 21, 18

Jack writes the next number in the pattern and hands the paper back to Ming.

So the numbers are 24, 21, 23, 20, 22, 19, 21, 18

We first find the pattern

24

21 = 24 - 3

23 = 21 + 2

20 = 23 - 3

22 = 20 + 2

19 = 22 - 3

21 = 19 + 2

18 = 21 - 3

So the next number will be

= 18 + 2

= 20

FINAL ANSWER

The number Jack should write = 20

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