Question

7 21 15

140 1320 ?

Find the missing number and give the answer?

Answer 1

Answer:

1314

Step-by-step explanation:

We can find out like this. The series can go like this.

We have 7, 21, 15, 140, 1320

Now          7 x 1 = 7

Next           3 x 7 = 21

                   3 x 5 = 15  

Again          7 x 20 = 140

Again         3 x 440 = 1320

Now           3 x  438 = 1314

So next number in the series will be 1314

Answer 2

Answer:

Step-by-step explanation:

660