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maths quiz for class ix and x
 

maths quiz for class ix and x

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    maths quiz for class ix and x maths quiz for class ix and x Presentation Transcript

    • Group No.-2 Class - IX ,X
    • First RoundGeneral Maths (Objective Type)
    • 1. 45 end with digit -• A. 0• B. 5• C. 4• D. 6
    • Ans. C. 4
    • 2.If the root of the equation3x²-kx-2=0 is 2,then what is thevalue of k.• A. 0• B. -2• C. 3• D. 5
    • Ans. D. 5
    • 3.If p+2, 4p-6 and 3p-2 are thethree consecutive terms of an A.P.,Find the value of p. • A. 1 • B. 2 • C. 3 • D. 4
    • Ans. C. 3
    • 4.In Series 1,3,7,15,…..,what is the next term?• A. 28• B. 29• C. 30• D. 31
    • Ans. 31
    • 5. If the tan A=3/4,then what is the value of sec A ?• A. 4/3• B. 3/5• C. 5/3• D. 5/4
    • Ans. D. 5/4
    • Q.6-What is the value ofCos80 /Sin10 +Cos 59 Cosec31 .• A. 0• B. 1• C. 2• D. 3
    • Ans. C. 2
    • Q.7-If A+B+C=180 and angleA=90 ,then what is value oftan(B+C)?• A. 0• B. 1• C. Not define• D.1/√2
    • Ans.-Not define
    • Q.8-What is the value of A? if 2Sin²A=1/2 , 0 <A<90 .• A. 0• B. 30• C. 45• D. 60
    • Ans. 30
    • Geometry
    • 1. In given figure, QT┴ PR, what is the value of x? P 30o T 40o x R Q S
    • •Ans. 80
    • 2. In given circle AB is diameter ofcircle.What is the value of x ? C 60o A B x D
    • Ans. 30o
    • 3.In given figure , PAR=90 . Find QPR. 24 cm. Q P A 90O R
    • Ans. 90o
    • 4.In the given figure,∆ODC~∆OBA. BOC=125 and CDO=70 ,Find OAB. D C 70o O 125o A B
    • Ans. 55o
    • 5.Give the name of the point ofintersection where all thealtitude of a triangle meet.
    • Ans. Arthocentre.
    • 6. If one angle of an isoscelestriangle is of 50 andAB=AC,Find the value of othertwo angles. A 50o B C
    • Ans. 65 ,65 o
    • 7. What is the area of an equilateraltriangle if the length of side is aunit?
    • Ans. (√3/4)a2
    • 8.Find the Sum of the interiorangles of a polygon having 12sides.
    • Ans.1800
    • 3 rd Round(Passing Round)
    • Q.1. Two Cubes each of volume64 cm³ are joined end to end .Find the surface area of theresulting cuboid.
    • Ans.160 cm²
    • Q.2. The radius of a sphere is14cm. It is melted and drawn into acylindrical wire of 7 cm in radius.Find the length of the wire.
    • Ans. 56 cm.
    • 3. Find the volume of thegreatest sphere that can be cutfrom a cylindrical log of wood ofbase radius 1cm and height 5cm.
    • Ans. (4/3) cm³
    • 4. Radius of a cone is 4 cm.Find the height of the cone sothat its volume may be equal tothat of a sphere of 4cm indiameter.
    • Ans. 2 cm.
    • Fourth RoundAlgebra
    • Q.1 Name the mathematician .Who first compute the decimal expansion of л(Pie).
    • Ans. Archimedes
    • Q.2- Find the value of 32 2/5.
    • Ans. 4
    • Q.3- What are the zeros of the polynomial P(x)=x²-5x+6?
    • Ans. 2,3
    • Q.4- What is the remainder when x4 + x³+x²- 2x+1 is divided by x-1?
    • Ans. 2
    • Q.5-If x+y+z=0 then x³+y³+z³ is equal to …………. .
    • Ans. 3xyz
    • Q.6-Find the value of[(1.7)2 – (1.3)2]/(1.7-1.3)
    • Ans. 3
    • Q.7- If the coordinate of a point are (3,2) then find the abscissa.
    • Ans. 3
    • Q.8- Give any two solution of the equation x+2y= 6.
    • Ans. X=6, y=0 and x=0 , y=3
    • End of the Group II