If a + b = 5 and a² + b² = 13 , then ab = ?

(a)

12

(b)

6

(c)

5

(d)

13

(5 + 20)(− 20 − 5) = ?

(a)

−425

(b)

375

(c)

−625

(d)

0

The factors of x² − 6x + 9 are

(a)

(x − 3)(x − 3)

(b)

(x − 3)(x + 3)

(c)

(x + 3)(x + 3)

(d)

(x − 6)(x + 9)

The common factors of the algebraic expressions ax² y , bxy₂ and cxyz is

(a)

x² y

(b)

xy²

(c)

xyz

(d)

xy

The solutions of the inequation 3 ≤ p ≤ 6 are (where p is a natural number)

(a)

4, 5 and 6

(b)

3, 4 and 5

(c)

4 and 5

(d)

3, 4, 5 and 6

The solution of the inequation 5x + 5 ≤ 15 are (where x is a natural number)

(a)

1 and 2

(b)

0, 1 and 2

(c)

2, 1, 0, −1, −2..

(d)

1, 2, 3..

The cost of one pen is Rs. 8 and it is available in a sealed pack of 10 pens. If Swetha has only Rs. 500, how many packs of pens can she buy at the maximum?

(a)

10

(b)

5

(c)

6

(d)

8

The inequation that is represented on the number line as shown below is_______

(a)

−4 < x < 0

(b)

−4 ≤ x ≤ 0

(c)

−4 < x ≤ 0

(d)

−4 ≤ x < 0