1. Solve 4376 + 3209 - 1784 + 97 = 3125 + ?
2. Solve 14 × 627 ÷ $$\sqrt {\left( {1089} \right)} $$ = (?)3 + 141
3. If $$\left( {x + \frac{1}{x}} \right) = 3,$$ then $$\left( {{x^2} + \frac{1}{{{x^2}}}} \right)$$ is = ?
4. If x + y + z = 0, then x3 + y3 + z3 + 3xyz is equal to = ?
5. Direction: In the question given below the given mathematical symbols are changed from '+' to '÷', '-' to '×', '÷' to '-' and from '×' to '+', then choose your answers from the following options.
67 × 119 + 17 - 27 × 259 = ?
67 × 119 + 17 - 27 × 259 = ?
6. $$\frac{{{{\left( {0.73} \right)}^3} + {{\left( {0.27} \right)}^3}}}{{{{\left( {0.73} \right)}^2} + {{\left( {0.27} \right)}^2} - 0.73 \times 0.27}}$$ = ?
7. $$\frac{{{{\left( {a - b} \right)}^2} - {{\left( {a + b} \right)}^2}}}{{ - 4a}}{\text{ = }}\frac{x}{y}$$ On simplifying the given equations, which of the following equations will be obtained ?
8. Let $$x = \frac{{5\frac{3}{4} - \frac{3}{7} \times 15\frac{3}{4} + 2\frac{2}{{35}} \div 1\frac{{11}}{{25}}}}{{\frac{3}{4} \div 5\frac{1}{4} + 5\frac{3}{5} \div 3\frac{4}{{15}}}}.$$ When y is added to x, the result is $$\frac{7}{{13}}.$$ What is the value of y?
9. Which of the following is the smallest fraction?
10. 2.8 + (5.2 ÷ 1.3 × 2) - 6 × 3 ÷ 8 + 2 the value of:
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