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Purnima Lodha
added on Mon Mar 02 12:57:17 UTC 2015 62 views

Question - Find the ratio in which the y-axis divides the line segment joining the points (-4, -6) and (10, 12). Also, find the coordinates of the point of division.
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Reema Narula
added on Fri Feb 20 11:03:21 UTC 2015 61 views

Question - Prove that the tangent at any point of a circle is perpendicular to the radius through the point of contact.
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Purnima Lodha
added on Fri Feb 20 11:58:11 UTC 2015 61 views

Question - Prove that the parallelogram circumscribing a circle is a rhombus.
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Reema Narula
added on Mon Mar 02 14:09:09 UTC 2015 61 views

Question - The angle of elevation of an aeroplane from a point on the ground is 60Â°. After a flight of 30 seconds the angle of elevation becomes 30Â° If the aeroplane is flying at a constant height of 3000--- 3 m, find the speed of the aeroplane.
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Purnima Lodha
added on Fri Feb 27 12:10:38 UTC 2015 60 views

Question - From a solid cylinder of height 7 cm and base diameter 12 cm, a conical cavity of same height and same base diameter is hollowed out. Find the total surface area of the remaining solid.
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Reema Narula
added on Mon Mar 02 13:55:04 UTC 2015 60 views

Question - In Figure 1, common tangents AB and CD to the two circles with centres 0_1and 0_2 intersect at E. Prove that AB = CD. ------
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Reema Narula
added on Mon Mar 02 14:08:24 UTC 2015 60 views

Question - The largest possible sphere is carved out of a wooden solid cube of side 7 em. Find the volume of the wood left. [ Use ----]
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Purnima Lodha
added on Fri Feb 27 12:05:36 UTC 2015 59 views

Question - A point P divides the line segment joining the points A(3,-5) and B(-4,8) such that ------- If P lies on the line x + y = 0, then find the value of K.
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Purnima Lodha
added on Mon Mar 02 12:28:21 UTC 2015 58 views

Question - Solve that following for x: ---------
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Reema Narula
added on Mon Mar 02 14:05:15 UTC 2015 57 views

Question - Solve for x: -------
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Purnima Lodha
added on Mon Mar 02 12:29:22 UTC 2015 57 views

Question - Sum of the areas of two squares is 400 cm^2. If the difference of their perimeters is 16 cm, find the sides of the two squares.
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Purnima Lodha
added on Fri Feb 27 11:22:04 UTC 2015 56 views

Question - In fig., OABC is a square of side 7 cm. If OAPC is a quadrant of a circle with centre O, then find the area of the shaded region. ------------
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Reema Narula
added on Mon Mar 02 13:58:13 UTC 2015 55 views

Question - A container open at the top, is in the form of a frustum of a cone of height 24 cm with radii of its lower and upper circular ends, as 8 cm and 20 cm respectively. Find the cost of milk which can completely fill the container. at the rate of 21 per litre. [Use ------]
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Purnima Lodha
added on Mon Mar 02 12:31:16 UTC 2015 55 views

Question - bucket open at the top, and made up of a metal sheet is in the form of a frustum of a cone. The depth of the bucket is 24 cm and the diameters of its upper and lower circular ends are 30 cm and 10 cm respectively. Find the cost of metal sheet used in it at the rate of Rs 10 per 100 cm^2.
[Use--- 3.14]
-----------
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Purnima Lodha
added on Fri Feb 20 11:39:47 UTC 2015 54 views

Question - In a circle of radius 21 cm, an arc subtends an angle of 60o at the centre. Find: (i) the length of the arc (ii) area of the sector formed by the arc. [Use -------]
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Reema Narula
added on Mon Mar 02 14:11:17 UTC 2015 54 views

Question - The incircle of an isosceles triangle ABC, in which AB = AC, touches the sides BC, CA and AB at D, E and F respectively. Prove that BD = DC.
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Purnima Lodha
added on Fri Feb 27 12:20:12 UTC 2015 53 views

Question - kite is flying at a height of 45 m above the ground. The string attached to the kite is temporarily tied to a point on the ground. The inclination of the string with the ground is 60^o. Find the length of the string assuming that there is slack in the string.
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Purnima Lodha
added on Fri Feb 27 12:12:08 UTC 2015 53 views

Question - In fig., PQ and AB are respectively the arcs of two concentric circles of radii 7 cm and 3.5 cm and centre O. If ---POQ = 30^o, then the area of the shaded region.------------
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Purnima Lodha
added on Fri Feb 27 11:16:55 UTC 2015 53 views

Question - A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4.
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Purnima Lodha
added on Mon Mar 02 13:18:10 UTC 2015 52 views

Question - How many three-digit natural numbers are divisible by 7?
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