Question

Answer the riddle
if ,
2= 3
5 = 12
6 = 15
8 = 21
then 4 = ?

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Answer 1

Answer:

9

Step-by-step explanation:

Add the number with odd number

2=3(2+1)

5=12(5+7)

6=15(6+9)

8=21(8+13)

TO FIND 4=? YOU SHOULD FIND 3=? ALSO

3=?

3=(3+3=6)

So 3=6

now 4=?

as we took al odd number 1,3

we take 5 as the number for 4

4=(4+5=9)

so,4=9

Hope it helped!