1. Which of the following equations has the same roots ?

a) x2 -6x+6=0 b) x2 + 8x + 16 = 0 c) 3x2+2x + 6 = 0 b) x2 + 2x + 1 = 0

2. If a, a – 2 and 3a are in AP, then the value of a isa) – 3 b) -2 c) 3 d) 2

3. A quadrilateral MNOP is drawn to circumscribe a circle. If MN=6cm, ON=7.5cm, OP=7cm, then MP is equal to

a) 6cm b) 5cm c) 5.5cm d) 6.5cm

a) 24cm b)22cm. c) 35cm d) 25cm

a) 60 b) 90 c) 70 d) 80

a) 65 b) 80 c) 70 d) 65.5

a) 4:9 b) 5:6 c) 4:5 d) 2:3

8. The difference between the circumference and radius of a circle is 37cm. The area of the circle is

a) 111cm2 b) 184cm2 c) 154cm2 d) 259cm2.

a) 450 b) 300 c) 600 e) 900.

a) 2/13 b) 2/52 c) 4/52 d) 4/13

**Section – B**

15. How many spherical lead shots each having diameter 3cm can be made from a cuboidal lead

16. Determine the ratio in which the point P(– 6,a) divides the join of A( - 3 , - 1) and B( - 8,9) . Also find the value of a.

17. Show that the points A(-1,0) , B(3,1) , C(2,2) and D(-2,2) are vertices of parallelogram.

18. A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it was before. Find x.

Or A coin is tossed three times. Find the probability of getting atmost one head.

**Section – C**

19. If the roots of the equation (a-b)x2 + (b-c)x + (c-a)=0 are equal, prove that b+c = 2a.

20 Find the sum of the integers between 50 and 250 that are divisible by 13.

21. ABC is a right triangle, right angled at B.A circle is inscribed in it. lengths of the two sides containing the right angle are 6cm and 8cm. Find the radius of the incircle.

22. Draw a circle of radius 3cm. Take two points P and Q on one of its extended diameter each at a distance of 7cm from its centre. Draw tangents to the circle from these two points P and

24. From a solid cylinder whose height is 12cm and diameter 10cm, a conical cavity of same height and same diameter is hollowed out. Find the volume and total surface area of the remaining solid.OrA hemispherical depression is cut out from one face of a cubical wooden block such that the diameter ‘l’ of the hemisphere is equal to the edge of the cube. Determine the surface area of the remaining solid.

25. A person standing on the bank of a river observes that angle of elevation of the top of a tree standing on the opposite bank is 60 deg. When he moves 40m away from the bank, he finds the angle of elevation to be 30 deg.. Find the height of the tree and the width of the river.

26. Find the area of Δ formed by vertices (a, b+c) (b, c+a) and (c, a+b).

27. Prove that (2, -2), (-2,1) and (5,2) are vertices of a right angled triangle. Find the area of the triangle and the length of the hypotenuse.

28. Cards with numbers 5 to 125 are placed in a box. A card is selected at random from the box. Find the probability that the card which is selected has a number which is perfect square.

**Section – D**

Or

Out of a number of Saras birds, one forth the number are moving about in lotus plants, 1/9 th coupled(along) with ¼ as well as 7 times the square root of the number move on a hill; 56 birds remain in vakula trees. What is the total number of birds.

30. The spiral is made up of successive semi-circles, with centres alternately at A and B, starting with centre at A, of radii 0.5cm, 1.0cm, 2.0cm,….

What is the total length of such a spiral made up of thirteen consecutive semi- circles ? (π= 22/7)

31. L and M are two parallel tangents at A and B. The tangent at C makes an intercept DE betweenl and m. Prove that <DFE = 90 deg..

34. A man on a cliff observes a boat at an angle of depression of 30deg which is approaching the shore to the point immediately beneath the observer with a uniform speed. Six minutes later, the angle of depression of the boat is found to be 60deg. Find the time taken by the boat to reach the shore.

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ReplyDeleteNice paper....But I have a doubt.

ReplyDeleteFor the first question, don't you think both option b & d (here both are option b) are right because b*b - 4*a*c=0 in both cases. Please reply as soon as possible. Thankyou.

can i get its solutions aswelll

ReplyDelete