21/x

x -1

x -2

2x

666

660

720

Try your self

21

25

41

67

2 kg

2.4 kg

2.5 kg

None of these

55

60

62

None of these

10 square unit

$5\sqrt{3}$ square unit

5 square unit

None of these

11 : 14

14 : 11

25 : 28

28 : 25

x =4

y =9

2x = 3y

2x + 3y =2

15%

18%

20%

22.5%

51

45

33

27

An odd number

Divisible by 4

An even number

Either B or C

5

3

$\frac{3}{5}$

$\frac{-3}{5}$

x<3

x <2

x =3

x>-3

80%

75%

100%

Try your self

$4.2\times {10}^{-1}$

$42\times {10}^{-3}$

$4.2 \times {10}^{-2}$

None of these

60 kg

62 kg

64 kg

Cannot be determined

15

10

18

12

40

75

70

80

4%

8%

6%

5%

5%

7.5%

10%

12%

decreased by 8%

decreased by 4%

increased by 8%

increased by 4%

450

400

500

520

90 degree

105 degree

110 degree

120 degree

1000

1200

1500

2000

11%

10.5%

33.3%

48.3%

32.2%

12.1%

33.3%

48.3%

7

8

6

5

15

18

20

25

3 : 7

2 : 7

4: 21

Try your self

154 sq meters

160 sq meters

185 sq meters

162 sq meters