Question

what is the next number in the series 12,15,21,24,30,33,39,...

Answer 1

Hi

12 , 15 , 21 , 24 , 30 , 33 , 39,. .. is the

given series.

i ) 12

ii ) 12 + 3 = 15

iii ) 15 + 6 = 21

iv ) 21 + 3 = 24

v ) 24 + 6 = 30

vi ) 30 + 3 = 33

vii ) 33 + 6 = 39

viii ) 39 + 3 = 42

ix ) 42 + 6 = 48

Here we are adding 3 and 6

consecutively.

I hope this helps you.

: )

Answer 2

Let's see the series,

12

• 12 + 3 = 15
• 15 + 6 = 21
• 21 + 3 = 24
• 24 + 6 = 30
• 30 + 3 = 33
• 33 + 6 = 39

Next number = 39 + 3 => 42