Question

ANSWER THIS QUESTION!​

Answer 1

To find :

if 2 = 6

3= 12.

4=20

5=30

6=42

then, 9 = ??

Rule :

every number is being multiplied by its next number or the rule is :

x= x(x+1)

Solution:

from the rule we get to know that :

9 = 9(9+1)

$\longrightarrow \bold{9 \times 10} \\ \longrightarrow \boxed{9 = 90}$

hence, 9 = 90

Answer 2

Here,

• 2 × 3 = 6
• 3 × 4 = 12
• 4 × 5 = 20
• 5 × 6 = 30
• 6 × 7 = 42

We can continue it like this

Here, we have can say that n × (n + 1)

Hence,

• For 7, Take n = 7
• n × (n + 1)
• 7 × (7 + 1)
• 7 × (8) = 56

According to question

• For 9, Take n = 9
• 9 × (9 + 1)
• 9 × 10 = 90

Hence, Answer is 90

I hope it helps you ❤️✔️