Question

Find the missing number ?

Answer 1

Hey!!
Here is the answer..

The answer is option (C) that is 42.

$\red{You \: must \: be \: wondering } \\ \red{ why?}$


The reason for the answer is..

Add the numbers that is...
For example
In 1st triangle,
Add the 1st row = 10, 5 , 12
Then, add 2nd = 12 ,7 , 10
and add 3rd= 10 , 8 , 10
If you add these all numbers, you will get the middle number that is 84.
( 10+5+12)+(12+7+10)+(10+8+10)= 84.

Similarly, if we do the same,
we get 42 as the answer.

I hope my answer helped!!

Thanks!!

#BeBrainly!!