Question

In the following question, the question mark represents the missing term of the series. Understand the pattern and insert the missing term
19, 39, 80, 163, 330,?, 1336
661
664
665
0668​

Answer 1

Answer:

665

19×2=38+1=39

39×2=78+2=80

80×2=160+3=163

163×2=326+4=330

330×2=660+5=665

Answer 2

The missing number is 665

Explanation:

while multiplying 19 with 2 we get 38, now add 1 with 38 we will get 39 ie.. 19×2=38+1=39

while multiplying 39 with 2 we get 78, now add 2 with 78 we will get 80... i.e  39×2=78+2=80

while multiplying 80 with 2 we get 160, now add 3 with 160 we will get 163...i.e 80×2=160+3=163

while multiplying 163 with 2 we get 326, now add 4 with 326 we will get 330...i.e 163×2=326+4=330

while multiplying 330 with 2 we get 660, now add 5 with 660 we will get 665...i.e 330×2=660+5=665. So 665 is the missing number.

while multiplying 665 with 2 we get 1,330, now add 6 with 1,330 we will get 1,336...i.e 665×2=1,330+6=1336