Question

3,5,6,10,9_12, 20
what would the missing number be?​

Answer 1

Answer:

The missing number is 15.

Step-by-step explanation:

As you can see, the pattern followed is

Multiple of 3 and Multiple of 5 . Thus, Numbers at odd positions are multiples of 3 and numbers at even positions are multiples of 5

Answer 2

Answer:

mark me as brainlist

Step-by-step explanation:

refer this attachment