1) A prime number is, a) 5 b) 6 c) 10 d) 8 2) Not a triangular number, a) 1 b) 3 c) 9 d) 10 3) The sum of interior angles of a square is, a) 512 b) 360 c) 90 d) 720 4) select the answer of 3^3 a) 9 b) 81 c) 27 d) 24 5) a+2b=3, 2a+b=9 what is the value of (a+b)? a) 4 b) 3 c) 6 d) 1 6) Edges+2=Vertices+Faces, this relationship was introduced by, a) Pythagoras b) Euclide c) Newton d) Euler 7) What is the incorrect statement? a) sin 30°=1.414 b) cos 60°=0.5 c) sin 90°= 1 d) cos 0°= 1 8) What is the shape of a face in a cube? a) rectangular b) square c) circular d) hexagonal 9) If 3x-4<8 , what is the value that cannot be considered as the value of x? a) 4 b) 3 c) 2 d) 1 10) Saman is going to toss a coin.What is the probability of getting head? a) 1/6 b) 1/3 c) 1/4 d) 1/2 11) The volume of a cylindrical tank is 125ml.Find the length of a side of a cubical tank which has the same volume as the cylindrical tank? a) 4cm b) 15cm c) 5cm d) 25cm 12) What is incorrect about a parallelogram? a) Opposite sides are equal b) Opposite sides are parallel c) All the sides are eqal d) The two diagonals bisect each other 13) It needs 3 people to finish a certain work by 5 days.How many human days are there? a) 5 b) 3 c) 15 d) 25 14) What is the answer of 567.45÷1000? a) 5.6745 b) 56.745 c) 0.56745 d) 56745 15) lg 1=0, what is the index here? a) 10 b) 0 c) 1 d) 0.1

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