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guess Paper 5


Guess QUESTION 5 - 2009


Class - X


Subject - Mathematics


 


Time:3hrs                                                                                                   Max.Marks:80


 


General Instructions             



  1. All questions compulsory
  2. The question paper consist of thirty questions divided in to 4 sections A,B,C and D. Section A comprises of ten questions of  1 marks each ,Section B comprises of five questions of 2 marks each, Section C comprises of  ten questions of 3 marks each and section D comprises of five questions of 6 marks each
  3. All questions in section A are to be answered in one word , one sentence or as per the exact requirement of the question
  4. there is no overall choice .However internal choice has been provided in one question of 2 marks each ,three question of three marks each and two questions of 6 marks each .You have to attempt only one of the alternatives in all such questions.
  5. In question on construction ,drawings should be neat and exactly as per the given measurements
  6. Use of calculators is not permitted .However you may ask for mathematical tables

 


SECTION A


1.              is a composite number because ………………………


2.              Are the system of linear equations x + 2y = 5, 3 x + 12y =10 consistent? Give reason.


3.              If ,, are  zeros of the cubic polynomial then               =……


4.                    The common difference of an A.P. is 4 then the value of t60-t55 is:


5.       The mean of 30 numbers is 18. If 5 is added to every number, then the new 


                    mean is:


6.              One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the cards will not be an ace.


7.              Given tanA = ¾ , find sinA cosA.


8.              Two cubes each of 10 cm edge are joined end to end. The surface area of the 


                   resulting cuboid is:                                                                                                               


9.              M  and  N  are  points  on  the  sides  PQ  and  PR


respectively   of  Δ PQR.  State  whether PQ//QR.                M                   N


      PM = 4cm, MQ = 4.5cm, PN = 4cm, NR = 4.5cm



P


T


Q


O



                                                                                                                                   Q                           R


10.              Two tangents TP and TQ are drawn to circle with


           centre O from an external point T, and 


           ÐPTQ = 600, find  ÐOPQ.


                                                                                                                                           


                  


                           


 


SECTION B


 


11.              m and n are zeros of . Find the values a and c   if




12.              In the figure ,AB parallel to DE and BD parallel to EF , is justify your answer 


 


 


 


 


 


 


13.              Without using trigonometric table find the value of


             


14.              Determine the ratio in which the point divides the join of and also find the value of a


15.              In a single throw of two dice , find the probability of getting


              i) Two heads                            ii) At least one heads


                                                       


SECTION C


16.              Find the HCF of  426 and 576 using Euclid’s division algorithm


17.              Draw the graph of and and show that there is a unique solution .Calculate the area bounded by these lines and x-axis


18.              On dividing by a polynomial, the quotient and remainder were and respectively.  Find.


19.              A polygon has 10 sides .The lengths of the sides starting with the smallest form an AP .If the perimeter of the polygon is 420 Cm and the length of the longest side is twice that of the shortest side .Find the first term and the common difference of the AP .


20.              Prove that the opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle.


21.              Draw a triangle ABC with side , then  construct a triangle whose sides are times the corresponding sides of .


22.              Prove that


OR


              Prove that , Using the identity


23.              Observe the graph and state whether the quadrilateral ABCD is a parallelogram .Justify your answer .





 


 


 


 


 


 


 


24.              Find the area of the triangle formed by joining the mid points of the sides of the sides of triangle whose vertices are


25.              A regular hexagon is circumscribed by a circle of radius 14 cm. Find the area of the shaded region use





 


 


 


 


SECTION D


26.              A train covers a distance of 90 Km at uniform speed .Had the speed been 15 Km /hr more. It would have taken 30 minutes less for the journey find the original speed of the train


OR


A party of tourists booked a room in a hotel for Rs 1200 , three of the members failed to pay as a result others had to pay Rs 20 more (each) . How many tourists were there in the party?


27.              Prove that in a right triangle , the square of the hypotenuse is equal to the sum of the squares of the other two sides. Using the above  solve the following


L and M are the mid points of AB and BC respectively of , right angled at B prove that


28.              The angle of elevation of a jet plane from a point A on the ground is .After a flight of 15 seconds , the angle of elevation changes to .If the jet plane is flying at a constant height of , find the speed of the jet plane.


29.              A building is in the form of a cylinder surmounted by a hemispherical vaulted dome ,the building contains 17.7 m3 of air and its internal diameter is equal to the height of the cylindrical part  find the height of the building  (use ).


30.              If the mean of the following frequency distribution is 53, find the value of ‘f1 and f2


                     Class:        0 – 20        20 – 40         40 – 60        60 – 80         80 – 100    total


            Frequency:           15                f1                 21                 f2                   17         100


 


 


 


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