Question

Look at this series: F2, __, D8, C16, B32, ... What number should fill the blank?

Answer 1

The letter series shows that Alphabets are started from F and are ending at B. Hence the letter after F should definitely be E. Coming to the number series, The pattern is 2, ?, 8, 16, 32. The numbers are being multiplied by 2. 8*2= 16, 16*2= 32. Hence the number after 2 should be 2*2=4.

Answer is= E4

Answer 2

Hey friend

If you look at the series then you can find that the alphabets are going in the opposite order than the normal alphabetical order

F,__,D,C,B

So the letter E can fit into the blank

When you look at the numbers, they are getting multiples by 2

2,__,8,16,32

So 2*2=4 can get into the blank

So E4 is the blank

Hope it helps!