4=12,5=20,6=30,7=42,9=?
Answers
Answer:
63 is the answer
Step-by-step explanation:
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Answer:
see the sequence carefully first is 4–12 difference between them is 8 now the next it is 5–20 difference between them is 15 difference between 15 and 8 is 7 now the next 6–30 difference between them is 24 now see the earlier difference between the earlier numbers it was 8 and 15 and there difference was 7 now 2 added to 7 is 9 and difference between 5–20 was 15 now the difference for the next sequence number will be 15+9 which is 24 as shown above now the difference between the next sequence number will be 9+2+24 which is 35 and that’s the difference between the next sequence number 7–42 and so 2 will be added to 9+2 which is 11 and after adding 2 it will make 13 which will then be added to 35 and so on.
and by going according to this answer is 80
Step-by-step explanation: