2.   If a² – 1/a² = 5, evaluate a⁴ + 1/a⁴

a) 27

 b) 67

c) 9

d) 4

³⁾     If a – b = 7 and a³ – b³ = 133, find: ab

a) -18

b) -10

c) 8

d) 5

4)Rationalize the denominators of:  3/ √5

5)   If x = 2√3 + 2√2, find:  1/x

a) (√3 - √2) / 24 

b) √3 - √2

c)√3

d)  (√3 - √2) / 2

6) What sum of money will amount to ₹5,445 in 2 years at 10% per annum compound interest?

a) ₹ 4500

b) ₹ 345

c) ₹ 678

d) ₹ 100

7) Factorise : 9x + 24y

a) 6 ( 3x + y )

b) 3 ( 3x + 8y )

c)4x + y

d) 2 ( 2x + 8y)

8) Factorise 4x² + 12x + 5.

a) (2x - 1) (2x + 5)

b) (x + 1) (2x + 5)

c)(2x + 1) (2x + 5)

d) none of above

9) Which of the following is not a criterion for congruence of triangles?

(a) SAS

(b) ASA

(c) SSA

(d) SSS

10) In triangles ABC and DEF, AB = FD and ∠A = ∠D. The two triangles will be congruent by SAS axiom if:

a) BC = EF

b) AC = DE

c) AC = EF

d) BC = DE