Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
$18,6,2, ?, \frac{2}{9}$

Option 1: $\frac{1}{3}$

Option 2: $\frac{1}{9}$

Option 3: $\frac{2}{3}$

Option 4: 1

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
$96,12, \frac{3}{2}, ?, \frac{3}{128}$

Option 1: $\frac{3}{12}$

Option 2: $\frac{1}{128}$

Option 3: $\frac{3}{64}$

Option 4: $\frac{3}{16}$

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
$\frac{1}{121}, \frac{1}{11}, 1, ?, 121$

Option 1: 11

Option 2: 12

Option 3: 21

Option 4: 1

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
4, 9, 20, 43, 90, ?

Option 1: 181

Option 2: 184

Option 3: 186

Option 4: 185

Question : Directions: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
($\sqrt{729 * 9}$) * 67 * 81 * (4 * 6) * 19

Option 1: +, –, +, ÷, =, ×

Option 2: ×, +, –, +, ×, =

Option 3: +, –, ÷, =, –, ×

Option 4: ÷, +, =, –, ×, +