test your math skills !

Question 1

If x2+x=3 then x4+x = ?

Accepted Answer

6(2-x)

Question 2

If ex=x then the solution is ?

Accepted Answer

There is no solution

Question 3

The most important book ever written by a Greek mathematian is ?

Accepted Answer

The Elements

Question 4

The maximum number of acute angles in a convex 10-gon in the Euclidean plane is ?

Accepted Answer

6

Question 5

if 25 ⊛ 27 = 8 and 64 ⊛ 8 = 10 then what is 36 ⊛ 343 = ?

Accepted Answer

13

Question 6

What is the sum of all the odd numbers between o and 100 ?

Accepted Answer

2500

Question 7

if x Γ y = x y then what's 4 Γ 4 = ?

Accepted Answer

256

Question 8

which of the following is not a prime number ?

Accepted Answer

403

Question 9

if a : b = 2 : 3 and b :c=3:4 then a:c = ?

Accepted Answer

1 : 2

Question 10

What is the model of graphical calculator in the picture bellow ?

Accepted Answer

ti 92 plus

Question 11

2(y+2)+11 >= 4y + 8 has the s.s.?

Accepted Answer

R

Question 12

If x^2 + y ^2 = 31 and xy = 9 then x+y = ?

Accepted Answer

7

Question 13

What is the sum of all the prime numbers between 20 and 30 ?

Accepted Answer

a factor of 156

Question 14

the angle between the hour handle and the minute handle when it is 3 :45 is ?

Accepted Answer

315

Question 15

2011 was the last year as a prime number , what is the next ?

Accepted Answer

2017

Question 16

How many squares in the chessboard ?

Accepted Answer

204

Question 17

What is the angle between the two handles of a clock at 5 : 20 ?

Accepted Answer

80

Question 18

If a ∆ b = √ a - ∛ b then what's 81 ∆ 343 = ?

Accepted Answer

2

Question 19

what is the missing number in the following : 2,6,12,20,30,42,.......?

Accepted Answer

56

Question 20

If 8 and 10 are lengths of two sides of a right angled triangle then the thrid side is ?

Accepted Answer

6

Question 21

If ( x + y ) = 7 and xy = 10 then x^2 + y ^2 = ?

Accepted Answer

29

Question 22

Which of the followin is a prime number ?

Accepted Answer

883

Question 23

How many prime numbers less than 1000 ?

Accepted Answer

168

Question 24

∣x-3∣ >=0 then the S.S. is ?

Accepted Answer

R ; all real numbers

Question 25

If the age of Sam is 5 years more than Jack's , in how many years Sam's will be twice Jack's?

Accepted Answer

no enough data

Question 26

If 12 persons in a room shook hands each with others , how many handshakes did happen ?

Accepted Answer

66

Question 27

If 2 © 3 = 12 , 5 © 7 = 48 , 11 © 13 = 148 , 4 © 8 = 45 then what's 7 © 2 = ?

Accepted Answer

24

Question 28

How many digits does the number :( 977883) have ?

Accepted Answer

2641

Question 29

If M(n) = ½ n( n2+1) then M(5) - M(4) = ?

Accepted Answer

31

Question 30

if the sum of legs of spiders and flies is 100 and the sum heads is 15 , how many spiders ?

Accepted Answer

5

Question 31

What is the name of the polygon that has number of sides equals number of diagonals ?

Accepted Answer

pentagon

Question 32

The average of three numbers is 90 , the sum of two of them is 150 what is the third number ?

Accepted Answer

120

Question 33

if 3 # 4 =5 , 12 # 5 = 13 , and 15 # 8 = 17 , then what's 24 # 7 =?

Accepted Answer

25

Question 34

The number associated with the magic square of the fourth degree is ?

Accepted Answer

34

Question 35

What is the value of : 10-15/5 + 4*2+ 7 - 5 ?

Accepted Answer

17

Question 36

How many diagonals does a nonagon have?

Accepted Answer

27

Question 37

the sum of all integers between 0 and 100 is ?

Accepted Answer

5050

Question 38

Which of the following is a perfect number ?

Accepted Answer

28, 6

Question 39

A triangle of sides 9 , 12, and 15 has area = ?

Accepted Answer

54

Question 40

The light year is approximately how many miles ?

Accepted Answer

6 trillion

Question 41

If A can do a job in 5 hours , B can do the same job in 2 hours , then A& B will take ?

Accepted Answer

1 3/7 hours

Question 42

the area of a triangle of sides 3 , 5 , and 4 is ?

Accepted Answer

6

Question 43

How many points does the graph of y=x5+x3+x-2000 cross the x axis ?

Accepted Answer

1

Question 44

How many prime numbers between 0 and 100 ?

Accepted Answer

25

Question 45

which of the following is rational numbe ?

Accepted Answer

289^(1/2)

Question 46

eiπ+ 1 = 0 is a famous equation named after ?

Accepted Answer

Euler

Question 47

which of the following is not a prime number ?

Accepted Answer

9997

Question 48

What is the sum of factors of 24 ?

Accepted Answer

60

Question 49

The law of Inertia for Newton is famous by ?

Accepted Answer

The First law of Newton

Question 50

how many prime numbers between zero and 1000,000 ?

Accepted Answer

78498

test your math skills !

Questions 50

test your math skills !

Questions 50