Question

Given the series what number should come next 80 10 70 15 60

Answer 1

Answer:

Next number of the series is 20

Step-by-step explanation:

Hey mate,

This is a combination of two series

1st : 80, 70, 60 (-10 in every term)

2nd : 10, 15 (+5 in every term)

So next number of the series is 15+5= 20

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