1. What will come in the place of question mark (?) in the following question? \(? = \sqrt[5]}\)

2. What should come in place of the question mark (?) in the following question? 85% of 4/7 of 6755 =? + 1678

3. What approximate value will come in the place of the question mark ‘?’ in the following question? 4.75 + 23.65 + 14.88 – 17.68 × 0.8 = ?

4. What will come in place of the question mark (?) in following equation? 2.25% of (80% of 800) – 1.5% of (60% of 800) =?

5. What should come in place of the question mark '?' in the following question? (15.20)2 - 44.608 ÷ ? = 8

6. What will come in place of the question mark '?' in following equation? \(3\frac{3}{5} \times \frac{4} + 1\frac{2}{3} \times \frac{2} = ?\)

7. What value will come in place of question mark in the following question? [(1.3)2 × (4.2)2] ÷ 2.7 =?

8. Simplify: \(\frac + 9\;\)

9. Find the value of ‘x’ which satisfies the equation \(\frac} = 16\;\)

10. If \(x = \sqrt {\left( {1.96} \right)} - \sqrt {\left( {0.04} \right)}\) then the value of x is

11. What will come in place of the question mark ‘?’ in the following question? (4 × 4)3 ÷ (512 ÷ 8)4 × (32 × 8)4 = (2 × 2)(? + 4)

12. What will come in place of the question mark (?) in the following equation? √? = 3.2

13. Directions: What will come in place of the question mark (?) in the following questions? ? = {(2.5)3 + (1.5)3}/{(2.5)3 – (1.5)3}

14. (5)0 + (8)2 is equal to

15. What will come in place of the question mark (?) in the following question? \({\left( {83} \right)^2} + {\left( {37} \right)^2} - \sqrt ? \; = 8160\)

16. What approximate value should come in the place of question mark (?) in the following question? (8423 + 3120 + 6543) ÷ (1536 + 377 + 189) = ?

17. What will come in the place of the question mark ‘?’ in the following question? 25% of 420 + 50% of 74 = ?

18. What will come in place of question mark '?' in the following question? \(5\frac{1}{6} - 3\frac{4}{9} + \ ? = \frac{7}{3} \times 4\frac{1}{6}\)

19. Find the value of \(\frac}} - {2^n}}}\)