Quiz about unit-1 fundamental of mathematics

Question 1

H.C.F of 10 and 12

Accepted Answer

2

Answer

4

Answer

6

Answer

8

Question 2

H.C.F of 66,77,121

Accepted Answer

11

Answer

12

Answer

13

Answer

17

Question 3

H.C.F of 27 and 81

Accepted Answer

27

Answer

3

Answer

9

Answer

87

Question 4

H.C.F of 72 and 56 is

Accepted Answer

8

Answer

7

Answer

3

Answer

2

Question 5

L.C.M of 12 and 15 is

Accepted Answer

60

Answer

15

Answer

12

Answer

3

Question 6

L.C.M of 5 and 73

Accepted Answer

365

Answer

5

Answer

73

Answer

146

Question 7

L.C.M of 5,10 and 25

Accepted Answer

50

Answer

5

Answer

10

Answer

25

Question 8

CO-relation between HCF and LCM is

Accepted Answer

LCM(a,b) $$ imes$$ HCF(a,b)=a $$ imes$$ b

Answer

LCM(a,b)- HCF (a,b)= a-b

Answer

LCM (a,b) $$\div$$ HCF(a,b) = a $$\div$$ b

Answer

LCM(a,b) + HCF(a,b) = a+b

Question 9

LCM of two numbers is 24 and HCF is 1.The two numbers are 3 and ------

Accepted Answer

8

Answer

4

Answer

24

Answer

1

Question 10

LCM of two numbers is 60 and HCF is 2.The two numbers are 10 and ------

Accepted Answer

12

Answer

2

Answer

20

Answer

60

Question 11

LCM of two numbers is 60 and HCF is 2.The two numbers are 10 and ------

Accepted Answer

12

Answer

2

Answer

20

Answer

60

Question 12

Simplify $$\frac{13}{15}+\frac{14}{15}$$

Accepted Answer

$$\frac{9}{5}$$

Answer

$$\frac{13}{15}$$

Answer

$$\frac{9}{10}$$

Answer

$$\frac{1}{15}$$

Question 13

Simplify $$\frac{8}{11}+\frac{3}{11}+\frac{5}{11}$$

Accepted Answer

$$\frac{16}{11}$$

Answer

$$\frac{8}{11}$$

Answer

$$\frac{10}{11}$$

Answer

$$\frac{16}{33}$$

Question 14

Simplify $$\frac{7}{12}-\frac{3}{12}-\frac{1}{12}$$

Accepted Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{12}$$

Answer

$$\frac{3}{0}$$

Answer

$$\frac{1}{36}$$

Question 15

Simplify $$\frac{32}{5}-\frac{12}{5}$$

Accepted Answer

4

Answer

$$\frac{44}{5}$$

Answer

$$\frac{18}{5}$$

Answer

$$\frac{18}{10}$$

Question 16

Simplify $$\frac{a}{b} imes\frac{c}{d}$$

Accepted Answer

$$\frac{ac}{bd}$$

Answer

$$\frac{ad}{bc}$$

Answer

$$\frac{ab}{cd}$$

Answer

$$\frac{ac}{bc}$$

Question 17

Simplify $$\frac{21}{5} imes\frac{16}{7}$$

Accepted Answer

$$\frac{48}{5}$$

Answer

$$\frac{3}{5}$$

Answer

$$\frac{32}{35}$$

Answer

$$\frac{48}{35}$$

Question 18

Simplify $$\frac{15}{6}\div\frac{4}{3}$$

Accepted Answer

$$\frac{15}{8}$$

Answer

$$\frac{5}{6}$$

Answer

$$\frac{2}{3}$$

Answer

$$\frac{5}{2}$$

Question 19

Simplify: $$a^m imes a^n$$

Accepted Answer

$$a^{m+n}$$

Answer

$$a^{mn}$$

Answer

$$a^m-n$$

Answer

$$am^n$$

Question 20

Simplify $$\frac{25}{49}\div\frac{15}{7}$$

Accepted Answer

$$\frac{5}{21}$$

Answer

$$\frac{125}{343}$$

Answer

$$\frac{8}{15}$$

Answer

$$\frac{5}{15}$$

Question 21

Simplify: $$\frac{14}{9} imes\frac{9}{7}$$

Accepted Answer

2

Answer

$$\frac{1}{2}$$

Answer

$$\frac{126}{42}$$

Answer

3

Question 22

Simplify: $$\frac{14}{6} imes\frac{9}{7}$$

Accepted Answer

2

Answer

$$\frac{1}{2}$$

Answer

$$\frac{126}{42}$$

Answer

3

Question 23

Simplify $$\frac{a^m}{a^n}$$

Accepted Answer

$$a^{m-n}$$

Answer

$$a^{mn}$$

Answer

$$a^{m+n}$$

Answer

$$a^mn$$

Question 24

Simplify: $$\left(a^m\right)^n$$

Accepted Answer

$$a^{mn}$$

Answer

$$a^{m-n}$$

Answer

$$a^{m+n}$$

Answer

$$a^mn$$

Question 25

$$a^{0\ }=$$

Accepted Answer

1

Answer

0

Answer

a

Answer

1a

Question 26

Simplify: $$2^3 imes2^5$$

Accepted Answer

256

Answer

$$2^2$$

Answer

$$2^{15}$$

Answer

$$2^5$$

Question 27

Simplify: $$2^3 imes2^5$$

Accepted Answer

$$2^8$$

Answer

$$2^2$$

Answer

$$2^{15}$$

Answer

$$2^5$$

Question 28

Simplify: $$2^{2\ } imes2^3$$

Accepted Answer

$$2^5$$

Answer

$$2^{15}$$

Answer

$$2^6$$

Answer

256

Question 29

Simplify: $$\left(a^7\right)^2$$

Accepted Answer

$$a^{14}$$

Answer

$$a^9$$

Answer

$$a^5$$

Answer

$$a^{72}$$

Question 30

Simplify: $$100^0$$

Accepted Answer

1

Answer

0

Answer

100

Answer

10

Question 31

Product of $$y^{7\ }and\ y^{3\ }$$ is equal to

Accepted Answer

$$y^{10}$$

Answer

$$y^{21}$$

Answer

$$y^4$$

Answer

none

Question 32

Product of $$m^2\ and\ m^{5\ }$$ is equal to

Accepted Answer

$$m^7$$

Answer

$$m^3$$

Answer

$$m^{10}$$

Answer

$$m^{25}$$

Question 33

Simplify: $$3^5 imes3^0$$

Accepted Answer

$$3^5$$

Answer

1

Answer

$$3^6$$

Answer

$$3^0$$

Question 34

General form of quadratic equation is

Accepted Answer

$$ax^2+bx+c=0$$

Answer

ax+b=0

Answer

$$ax^2-b-c=0$$

Answer

$$ax^2-b=0$$

Question 35

The division of $$z^{10\ }\ and\ z^2$$ is equal to

Accepted Answer

$$z^8$$

Answer

$$z^{20}$$

Answer

$$z^5$$

Answer

$$z^{12}$$

Question 36

Simplify $$\frac{8^{11}}{8^3}$$

Accepted Answer

$$8^8$$

Answer

$$8^{13}$$

Answer

$$8^{33}$$

Answer

$$8^{11}$$

Question 37

Find x, if x-4 = 18

Accepted Answer

22

Answer

18

Answer

4

Answer

14

Question 38

Find x, if x-2 = 12

Accepted Answer

14

Answer

12

Answer

2

Answer

10

Question 39

Find x , if $$\frac{x}{5}\ =\ 0$$

Accepted Answer

0

Answer

5

Answer

10

Answer

14

Question 40

Find x ,if $$\frac{3x}{7}\ =\ 0$$

Accepted Answer

0

Answer

7

Answer

35

Answer

$$\frac{7}{3}$$

Question 41

An equation involving an unknown in the first degree is------

Accepted Answer

Linear equation

Answer

Quadratic equation

Answer

Differentia equation

Answer

None

Question 42

The value of k for which x = -2 is the root of the quadratic equation is $$kx^2+x-6=0$$

Accepted Answer

2

Answer

-1

Answer

-2

Answer

3

Question 43

The correct form of quadratic equation is $$w^2=3w-1$$

Accepted Answer

$$w^2-3w+1=0$$

Answer

$$w^2+3w+1=0$$

Answer

$$w^2-3w-1=0$$

Answer

none

Question 44

The common root of quadratic equations $$x^2-3x+2=0$$ and is $$2x^2-5x+2=0$$

Accepted Answer

x = 2

Answer

x= -2

Answer

x = 4

Answer

0

Question 45

The roots of the quadratic equation $$x^2+5x-6=0$$

Accepted Answer

x = 1 and x = -6

Answer

x = -1 and x=6

Answer

x=2

Answer

x=3

Question 46

Two square roots of unity are

Accepted Answer

1, -1

Answer

1,0

Answer

i

Answer

-i

Question 47

If roots of $$x^2-5x+a=0$$ are equal, then a =

Accepted Answer

$$\frac{25}{4}$$

Answer

$$\frac{25}{5}$$

Answer

25

Answer

1

Question 48

Roots of $$ax^2+bx+c=0$$ are equal, then

Accepted Answer

$$b^2-4ac=0$$

Answer

$$b^2-4ac=5$$

Answer

b=3

Answer

b=0

Question 49

If one of the roots of $$x^2-3x+a\ =0\ $$ is 2, then

Accepted Answer

a = 2

Answer

a = -2

Answer

a = 0

Answer

a = -3

Question 50

If two roots of quadratic equation $$m^2+7m+10=0$$ are -2 and -5, then the roots of the

quadratic equation $$m^2-7m+10=0$$ are given by

Accepted Answer

-2,-5

Answer

$$\frac{1}{2},\frac{1}{5}$$

Answer

2,5

Answer

$$-\frac{1}{2},-\frac{1}{5}$$

Question 51

The equation whose roots are 1 and 0, is

Accepted Answer

$$x^2-x=0$$

Answer

$$x^2-2x+1=0$$

Answer

$$x^2-1=0$$

Answer

$$x^2-2x-1=0$$

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