Solve 3x + 8> 2, when x is an integer.

2

(a)

Solve the inequalities : 2(2x + 3) -10< 6 (x - 2) for real x.

2

(a)

Ravi obtained 70 and 75 marks in first two unit test. Find the minimum marks he should get in the third test to have an average of atleast 60 marks.

2

(a)

In drilling world's deepest hole it was found that the temperature T in degree Celcius x km below the Earth's surface was given by T (x) = 30 + 25(x - 3), where 3 \(\le \) x \(\le \) 15. At what depth will the temperature be between 155^o C and 205^o C?

2

(a)

Solve the inequalities : 3x - 7 > 5x -1

2

(a)

Solve the inequalities : 3(x-1) \(\le\) 2(x-3)

2

(a)

Solve the inequalities : 3(2 - x)\(\ge\) 2 (1-x)

2

(a)

Solve the inequalities - 3x - 2 < 2x + 1

2

(a)

Solve the inequalities 5x -3 \(\ge\) 3x - 5

2

(a)

Solve 6x < 24 When (i) x is a natural number (ii) x is an integer

2

(a)

Solve the inequalities:\(\frac { 2x+3 }{ 5 } -2<\frac { 3(x-2) }{ 5 } \)

2

(a)

Solve the inequalities:\(\frac { x-1 }{ x+5 } >2\)

2

(a)

A solution of 9% acid is to be diluted by adding 3%acid solution to it. The resulting mixture is to be more than 5%but less than 7% acid. If there is 460 litres of the 9% solution, how many litres of 3%solution will have to be added?

2

(a)

Solve the inequalities: \(7\le \frac { \left( 3x+11 \right) }{ 2 } \le 11\)

2

(a)

Solve the inequalities in graphically 5(2x-7) -3 (2x + 3) \(\le\)0, 2x +19 \(\le\) 6x +47

2

(a)