find the missing number in the following 15,12,17,10,? 8,25
Answers
Answered by
0
Answer:
20 15.17.x25 are in same series different. I by 3
Answered by
0
Answer:
19
Step-by-step explanation:
Here we have the series is
15,12,17,10, ?, 8, 25
Now, the difference between the each two numbers are
in between 15 and 12 is -3
in between 12 and 17 is +5
in between 17 and 10 is -7
so, the next difference between them will be +9 and the number is 19
now the difference between 19 and 8 is -11
so, the difference series is
-3, +5, -7, +9, -11
So, the answer will be 19.
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