Question

if 4 8 12 =14 and 6 24 30 =6 then 2 7 8 =?

Answer 1

Consider the first sequence, 4 8 12

Adding all three numbers, we get

$4+8+12 = 24$

Breaking 24 as $24=(2 \times 4)+(2+4)$

= $8+6 = 14$.

Now, consider the second sequence 6 24 30

Adding all three numbers, we get

$6+24+30=60$

Breaking 60 as $(6 \times 0)+(6+0)$

= 6

Consider the third sequence 2 7 8 = ?

Adding all three numbers,

$2+7+8=17$

Breaking 17 as $(1 \times 7)+(1+7)$

= 15

Therefore, 15 is the required answer.