Question

3+5+7=152181
4+5+6=202461 3+4+7=122172 9+4+5=364518 8+6+8 =??????

Answer 1

Answer:

4864821

Step-by-step explanation:

Given  

3+5+7=152181 4+5+6=202461 3+4+7=122172 9+4+5=364518 8+6+8 =??????

We need to find the missing number of the given series. So

   3 x 5 = 15 and 3 x 7 = 21

     4 x 5 = 20 and 4 x 6 = 24

    3 x 4 = 12 and 3 x 7 = 21

     9 x 4 = 36 and 9 x 5 = 45

      8 x 6 = 48 and 8 x 8 = 64

1. 3^2 x (7 – 5) = 9 x 2 = 18 when reversed it will be 81

2. 4^2 x (6 – 5) = 16 = 61

3. 3^2 x (7 – 4) = 27 = 72

4. 9^2 x (5 – 4) = 81 = 18

5. 8^2 x (8 – 6) = 128 = 821

So combining all numbers we get

6. 152181

7. 202461

8. 364518

9. 4864821

So the missing number will be 4864821

Answer 2

Answer:

8 + 6 + 8 = 4864821

Step-by-step explanation:

In this question

We have been given that

3 + 5 + 7 = 152181

4+ 5 + 6 = 202461

3 + 4 + 7 = 122172

8 + 6 + 8 = ??????

Now, $3\times 5$ = 15 and $3\times 7$ = 21

$3^{2}\times (7-5)$ = $9\times 2$ = 18

We can reverse the answer

Then 18 = 81

Therefore, 3 + 5 + 7 = 152181

Similarly, $4\times 5$ = 20 and  $4\times 6$ = 24

$4^{2}\times (6-5)$ = $16\times 1$ = 16 ⇔ 61

4+ 5 + 6 = 202461

Therefore,  $3\times 4$ = 12 and  $3\times 7$ = 21

$3^{2}\times (7-4)$ = $9\times 3$ = 27 ⇔ 72

3 + 4 + 7 = 122172

Now, $8\times 6$ = 48 and  $8\times 8$ = 64

$8^{2}\times (8-6)$ = $64\times 2$ = 128 ⇔ 821

8 + 6 + 8 = 4864821