1. If 397 ÷ 927 × 2722 ÷ 334 = k25, then what is the value of k?

2. 60% of 720 + 45% of 960 = 90% of ?

3. Find the value of \(\sqrt {280 - \sqrt {196} - \sqrt{100} } ?\)

4. 12.5% of 4096 + 60% of 2025 = x3 – 1, Find the value of x?

5. \(44\frac{1}{11}+44\frac{2}{11}+44\frac{3}{11}+44\frac{5}{11}=?\)

6. The value of \(\left[ {15 + \left( {5 \times 4} \right)} \right] \div \left( {5 + 2} \right) + \left[ {20 - \left( {\frac{3}{5}\;of\;15} \right)} \right]\) is

7. Raj bought \(4\frac{7}{12}\) kg vegetables and \(3\frac{1}{6}\) kg fruits. Find the total weight he carried from the market.

8. When 65 percent of a number is subtracted from itself, then the result becomes square root of 784. What is the number?

9. Solve (4.8 × 108) ÷ (12 × 105)

10. If the numerator of a fraction is increased by 20% and the denominator is decreased by 30%, the fraction obtained is \(\frac\). The original fraction is:

11. What will come in the place of the question mark '?' in the following question? (3 of 36 ÷ 6 – 2) + (169 ÷ 13 × 5) – (48 × 7 ÷ 6) = ?

12. Find the value of x. x% of 50 = 40

13. What will come at place of x, (x < 10) for \(\frac{(132 \div 12 \times x - 3 \times 3)}{(5^2 - 6 \times 4 + x^2)} = 1\)?

14. The value of \(\sqrt { - \sqrt 5 + 6 + \;\sqrt {9 - 4\sqrt 5 } } \) is

15. If 20% of (x + y) = 25% of (x - y), then what percent of y is equal to x?

16. Find the value of √[(6)2 + (10)2 +(√89)2]

17. 25% of which number is equal to 12.5% of Rs. 180?

18. \(\frac{(6.25)^\frac{1}{2} \times (0.0144) ^\frac{1}{2} + 1}{(0.027)^\frac{1}{3} \times (81)^\frac{1}{4}} = ?\)

19. If A is 20% more than B, then B is how much percentage less than A?

20. Solve 798 ÷ 14 + 625 ÷ 25 + ? = 75% of 2500