Question

12. If 4 x 8 = 42, 6 x 4 = 23, 8 x 6 =34 then 2 x 4 = ?​

Answer 1

Answer:

21

Step-by-step explanation:

axb= b/2&a/2

4 x 8 = 8/2 and 4/2 = 42

6 x 4 = 4/2 and 6/2 = 23,

8 x 6 = 6/2 and 8/2 = 34  

2 x 4 = 4/2 and 2/2 = 21

Answer 2

Answer:

2 × 4 = 21.

Step-by-step explanation:

Explanation:

Given that, 4 × 8 = 42 , 6 × 4 = 23 , 8 × 6 = 34

Here we can see that, on dividing both the numbers 4 and 8 by 2 we get,

⇒ 4 × 8 = 42⇒  $\frac{8}{2}$  and $\frac{4}{2}$ ⇒  2 and 4

And 4 and 2 can be written as 42.

• Similarly for 6 × 4 = 23

On dividing both the numbers 4 and 6 by 2 we get,

⇒ $\frac{4}{2}$ and $\frac{6}{2}$ ⇒ 2 and 3 ⇒ 23

• For 8 × 6 = 34

By dividing both the numbers 8 and 6 by 2 we get,

⇒  $\frac{6}{2}$  and $\frac{8}{2}$ ⇒ 3 and 4 ⇒ 34.

• Similarly, we solve 2 × 4.

On dividing both the numbers 4 and 2 by 2 we get,

⇒ $\frac{4}{2}$ and $\frac{2}{2}$ ⇒ 2 and 1 ⇒ 21.

Final answer:

Hence,  2 × 4 is equal to 21.

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