Find the missing number in the given series. -2.7, -2.1, -1.5, -0.9, -0.3, ?
0.3
Find the difference between successive terms of the series.
-2.1 - (-2.7) = 0.6, -1.5 - (-2.1) = 0.6, -0.9 - (-1.5) = 0.6, -0.3 - (-0.9) = 0.6.
So each term is 0.6 more than the previous one, and the next term is -0.3 + 0.6 = 0.3.
Check: the series -2.7, -2.1, -1.5, -0.9, -0.3, 0.3 keeps a constant step.
Hence, 0.3.
Refer to the given number and symbol series and answer the question that follows. Counting to be done from left to right only.
(Left) 2 & % 4 6 @ & 3 Ω 9 # 1 * 8 £ 6 1 7 # (Right)
How many such symbols are there, each of which is immediately preceded by an even number and also immediately followed by an even number?
Choose the option which completes the given figure series.

Select the correct option that will fill in the blank and complete the series.
18, 36, 108, 432, 2160, .............Select the correct option that will fill in the blank and complete the series.
52, 56, 65, 81, 106, ?Select the correct option that will fill in the blank and complete the series. 21, 43, 85, 171, 341, .......
Select the correct option that will fill in the blank and complete the series.
3, 5, 7, 9, 11, ?
2, 2, 2, 2, 2, ?