Question

1, 2, 3, 5, 7, ?
(1) 8
(2) 9
(3) 10
(4) 13
the correct answer is (3) 10 but please tell me how?
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Answer 1

Step-by-step explanation:

1

2

1+2 = 3

2+3. = 5

5+3-1. = 7

5+7-2 =. 12

Answer 2

Answer:

yes, the correct answer is 10

Step-by-step explanation:

1+1=2, 2+1=3, 3+2=5, 5+2=7, 7+3=10...

See here, the first two increase by 1, then third two increases by 2, then the fifth two will increase by 3. So, 7 + 3 = 10.