Question : How many maximum electrons can the M shell have?

Option 1: 18

Option 2: 8

Option 3: 1

Option 4: 2

Question : What is the simplified value of $(2+1)(2^{2}+1)(2^{4}+1)(2^{8}+1)$?

Option 1: $2^{8}-1$

Option 2: $2^{16}-1$

Option 3: $2^{32}-1$

Option 4: $2^{64}-1$

Question : Directions: In the following question a series is given, with one/two terms missing. Choose the correct alternative from the given ones that will complete the series.
4, 6, 8, 12, 14, 18, 20, 24, 30, ?, ?

Option 1: 32, 34

Option 2: 34, 36

Option 3: 32, 38

Option 4: 32, 33

Question : The value of $\frac{5-2 \div 4 \times[5-(3-4)]+5 \times 4 \div 2 \text { of } 4}{4+4 \div 8 \text { of } 2 \times(8-5) \times 2 \div 3-8 \div 2 \text { of } 8}$ is:

Option 1: $\frac{9}{8}$

Option 2: $\frac{9}{4}$

Option 3: $\frac{15}{32}$

Option 4: $\frac{89}{4}$

Question : What is the simplified value of $(3+1)(3^{2}+1)(3^{4}+1)(3^{8}+1)(3^{16}+1)$?

Option 1: $\frac{(3^{32}-1)}{2}$

Option 2: $\frac{(3^{16}-1)}{2}$

Option 3: $\frac{(3^{64}-1)}{2}$

Option 4: $\frac{(3^{128}-1)}{2}$