Which of the following pairs is equivalent?

(a)

\(\frac { -20 }{ 12 } ,\frac { 5 }{ 3 } \)

(b)

\(\frac { 16 }{ -30 } ,\frac { -8 }{ 15 } \)

(c)

\(\frac { -18 }{ 36 } ,\frac { -20 }{ 44 } \)

(d)

\(\frac { 7 }{ -5 } ,\frac { -5 }{ 7 } \)

\(\left( 1-\frac { 1 }{ 2 } \right) \times \left( \frac { 1 }{ 2 } -\frac { 1 }{ 4 } \right) \div \left( \frac { 3 }{ 4 } -\frac { 1 }{ 2 } \right) \)=

(a)

\(\frac { 1 }{ 2 } \)

(b)

\(\frac { 3 }{ 4 } \)

(c)

\(\frac { 1 }{ 4 } \)

(d)

\(\frac { -1 }{ 2 } \)

\(\frac { 1 }{ 2 } \times \left( \frac { 1 }{ 3 } +\frac { 1 }{ 4 } \right) =\left( \frac { 1 }{ 2 } +\frac { 1 }{ 3 } \right) +\frac { 1 }{ 4 } \)

(a)

Closure property

(b)

Associative property

(c)

Distributive property

(d)

Commutative property

Perimeter of a sector is

(a)

\(\frac{lr}{2}\)

(b)

\(\frac{l+r}{2}\)

(c)

l+2r

(d)

\(\pi\)+2

The missing terms in the product - 3m3n x 9(_) = ___________m⁴n³ are

(a)

mn², 27

(b)

m²n, 27

(c)

m²n², -27

(d)

mn², -27

Common factor of 17abc, 34ab², 51a² b is _________.

(a)

17 abc

(b)

17 ab

(c)

17 ac

(d)

17 a²b²c²

If in triangles PQR and XYZ, \(\frac{PQ}{XY}=\frac{QR}{ZX}\) then they will be similar if

(a)

∠Q = ∠Y

(b)

∠P = ∠X

(c)

∠Q = ∠X

(d)

∠P ≡ ∠Z

How many 2 digit numbers contain the number 7?

(a)

10

(b)

18

(c)

19

(d)

20

The single discount % which is equivalent to two successive discount of 20% and 25% is

(a)

40%

(b)

45%

(c)

5%

(d)

22.5%

The product of LCM and HCF of two numbers is 24. If one of the number is 6, then the other number is ________.

(a)

6

(b)

2

(c)

4

(d)

8

The area of a rectangle of length 21 cm and diagonal 29 cm is __________cm².

(a)

609

(b)

580

(c)

420

(d)

210

There are four groups of letters in each set. Three of these sets are a like in some way while one is different. Find the one which is different.

(a)

C R D T

(b)

A P B Q

(c)

E U F V

(d)

G W H X

\(\sqrt { 128 } -\sqrt { 98 } +\sqrt { 18 } =\) 

(a)

\(\sqrt { 2 } \)

(b)

\(\sqrt { 8 } \)

(c)

\(\sqrt { 48 } \)

(d)

\(\sqrt { 32 } \)

 In a class interval the upper limit of one class is the lower limit of the other class. This is ________series.

(a)

Inclusive

(b)

exclusive

(c)

ungrouped

(d)

none of these

Online or television advertisements influence on spending decisions by

(a)

using special music

(b)

using attractive pictures

(c)

making me think I need the item

(d)

all the above