by
Purnima Lodha
added on Fri Feb 20 11:30:21 UTC 2015 83 views

Question - Group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person from the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is (i) extremely patient (ii) extremely kind or honest. Which of the above values you prefer more?
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 20 11:08:29 UTC 2015 80 views

Question - A wooden toy was made by scooping out a hemisphere of same radius from each end of a solid cylinder. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the volume of wood in the toy. [Use --------]
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Reema Narula
added on Fri Feb 20 10:29:38 UTC 2015 79 views

Question - Find the values of k for which the quadratic equation 9x^2 - 3kx + k = 0 has equal roots.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 20 11:25:31 UTC 2015 79 views

Question - For what values of k, the roots of the quadratic equation (k + 4) x2 + (k + 1)x + 1 = 0 are equal?
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Mon Mar 02 12:46:15 UTC 2015 76 views

Question - For what values of k, the roots of the quadratic equation (k + 4) x2 + (k + 1)x + 1 = 0 are equal?
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Mon Mar 02 12:33:35 UTC 2015 75 views

Question - Water is flowing through a cylindrical pipe, of internal diameter 2 cm, into a cylindrical tank of base radius 40 cm, at the rate of 0.4 m/s. Determine the rise in level of water in the tank in half an hour.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 20 11:40:22 UTC 2015 75 views

Question - In Fig., AB and CD are two diameters of a circle with centre O, which are perpendicular to each other. OB is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region. [ -------]
------------
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 20 11:27:50 UTC 2015 72 views

Question - The horizontal distance between two poles is 15 m. The angle of depression of the top of first pole as seen from the top of second pole is 30^o. If the height of the second pole is 24 m, find the height of the first pole. [Use ---- 1.732]
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Mon Mar 02 12:35:07 UTC 2015 72 views

Question - The sum of first n terms of an AP is 3n^2 + 4n. Find the 25th term of this AP.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Reema Narula
added on Mon Mar 02 14:04:28 UTC 2015 70 views

Question - The sum of the 2nd and the 7th terms of an AP is 30. If its 15th term is 1 less than twice its 8th term, find the AP.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 27 12:23:36 UTC 2015 70 views

Question - A bucket is in the form of a frustum of a cone and its can hold 28.49 litres of water. If the radii of its circular ends are 28 cm and 21 cm, find the height of the bucket. -------
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 20 11:50:11 UTC 2015 69 views

Question - A vessel is in the form of hemispherical bowl surmounted by a hollow cylinder of same diameter. The diameter of the hemispherical bowl is 14 cm and the total height of the vessel is 13 cm. Find the total surface area of the vessel. [Use --------]
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 27 12:26:31 UTC 2015 68 views

Question - A shopkeeper buys some books for Rs. 80. If he had bought 4 more books for the same amount, each book would have cost Rs. 1 less. Find the number of books he bought.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 27 12:07:20 UTC 2015 65 views

Question - Prove that opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 27 11:18:54 UTC 2015 64 views

Question - Tangents PA and PB are drawn from an external point P to two concentric circle with centre O and radii 8 cm and 5 cm respectively, as shown in Fig., If AP = 15 cm, then find the length of BP. ------------
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 27 12:06:38 UTC 2015 64 views

Question - If the vertices of a triangle are (1,-3), (4,p) and (-9,7) and its area is 15 sq. units, find the value (s) of p.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 27 11:17:48 UTC 2015 64 views

Question - The volume of a hemisphere is ------- cm^3. Find its curved surface area. ---------
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Fri Feb 20 11:56:02 UTC 2015 62 views

Question - A card is drawn at random from a well shuffled pack of 52 playing cards. Find the probability that the drawn card is neither a king nor a queen.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
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.
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

by
Purnima Lodha
added on Mon Mar 02 12:30:09 UTC 2015 62 views

Question - In fig., l and m are two parallel tangents to a circle with centre O, touching the circle at A and B respectively. Another tangent at C intersects the line l at D and m at E. Prove that --DOE 90--
-----------
Vedantu - Your Personal Teacher Online
- Get an clear edge over other students by constant revision of important topics with an awesome teacher.
- Get your doubts and questions resolved instantly by booking an instant live session
- Prepare for competitive exams with our exam courses and achieve your goal
- Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses