Date: March 2015
Question 1 to Question 4 is Compulsory
Attempt Any Four Quesion from Question 5 to Question 11
A shopkeeper bought an article for Rs. 3,450. He marks the price of the article 16% above the cost price. The rate of sales tax charged in the article is 10%
Find the:
1) market price of the article.
2) price paid by a customer who buys the article
Chapter: [0.013999999999999999] Gst (Goods and Services Tax)
Solve the following inequation and write the solution set:
13x – 5 < 15x + 4 < 7x + 12, x ε R
Represent the solution on a real number line.
Chapter: [0.020499999999999997] Linear Inequations
Without using trigonometric tables evaluate:
`(sin 65^@)/(cos 25^@) + (cos 32^@)/(sin 58^@) - sin 28^2. sec 62^@ + cosec^2 30^@`
Chapter: [0.05] Trigonometry
if `A = [(3,x),(0,1)], B = [(9,16),(0,-y)]`, Find x and y where `A^2 = B`
Chapter: [0.0208] Matrices
The present population of the town is 2,00,000. The population is increased by 10% in the first year and 15% in the second year. Find the population of the town at the end of two years.
Chapter: [0.011000000000000001] Compound Interest
Three vertices of parallelogram ABCD taken in order are A(3, 6), B(5, 10) and C(3, 2)
1) the coordinate of the fourth vertex D
2) length of diagonal BD
3) equation of the side AD of the parallelogram ABCD
Chapter: [0.021] Co-ordinate Geometry Equation of a Line
In the given figure, ABCD is the square of side 21 cm. AC and BD are two diagonals of the square. Two semicircles are drawn with AD and BC as diameters. Find the area of the shaded region. (Take `pi = 22/7`)
Chapter: [0.04] Mensuration
The marks obtained by 30 students in a class assignment of 5 marks are given below.
Marks | 0 | 1 | 2 | 3 | 4 | 5 |
No. of Students |
1 | 3 | 6 | 10 | 5 | 5 |
Calculate the mean, median and mode of the above distribution
Chapter: [0.06] Statistics
In the figure given below, O is the centre of the circle and SP is a tangent. If ∠SRT = 65°,
find the value of x, y and z.
Chapter: [0.033] Constructions
Katrina opened a recurring deposit account with a Nationalised Bank for a period of 2 years. If the bank pays interest at the rate 6% per annum and the monthly instalment is Rs. 1,000, find the:
1) Interest earned in 2 years.
2) Matured value
Chapter: [0.013000000000000001] Banking
Find the value of ‘K’ for which x = 3 is a solution of the quadratic equation
`(K + 2)x^2 - kx + 6 = 0`
Chapter: [0.0202] Quadratic Equations
Construct a regular hexagon of side 5 cm. Construct a circle circumscribing the hexagon. All traces of construction must be clearly shown.
Chapter: [0.033] Constructions
Use a graph paper for this question taking 1 cm = 1 unit along both the x and y-axis :
1) Plot the points A(0, 5), B(2, 5), C(5, 2), D(5, -2), E(2, -5) and F(0, -5).
2) Reflect the points B, C, D and E on the y-axis and name them respectively as B’, C’, D’ and E’.
3) Write the coordinates of B’, C’, D’ and E’.
4) Name the figure formed by B C D E E’ D’ C’ B’.
5) Name a line of symmetry for the figure formed.
Chapter: [0.034] Symmetry
Virat opened a Savings Bank account in a bank on 16th April 2010. His pass book shows the following entries:
Date | Particulars |
Withdrawal (Rs.) |
Deposit (Rs.) | Balance (Rs.) |
April 16, 2010 | , By cash | - | 2500 | 2500 |
April 28th | By cheque | - | 3000 | 5500 |
May 9th | To cheque | 850 | - | 4650 |
May 15th | By cash | 1600 | 6250 | |
May 24th | To cash | 1000 | - | 5250 |
June 4th | To cash | 500 | - | 4750 |
June 30th | To cheque | - | 2400 | 7150 |
July 3rd | By cash | - | 1800 | 8950 |
Calculate the interest Virat earned at the end of 31st July 2010 at 4% per annum interest. What sum of money will he receive if he closed the account on 1st August 2010?
Chapter: [0.013000000000000001] Banking
If a, b, c are in continued proportion, prove that (a + b + c) (a – b + c) = a^{2} + b^{2} + c^{2}
Chapter: [0.011000000000000001] Compound Interest
In the given figure ABC is a triangle and BC is parallel to the y-axis. AB and AC intersect
the y-axis at P and Q respectively.
1) Write the coordinates of A.
2) Find the length of AB and AC
3) Find the ratio in which Q divides AC.
4) Find the equation of the line AC
Chapter: [0.021] Co-ordinate Geometry Equation of a Line
Calculate the mean of the following distribution :
Class Interval | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
Frequency | 8 | 5 | 12 | 35 | 24 | 16 |
Chapter: [0.06] Statistics
Two solid spheres of radii 2 cm and 4 cm are melted and recast into a cone of height 8 cm. Find the radius of the cone so formed.
Chapter: [0.04] Mensuration [0.04] Mensuration
Find 'a' of the two polynomials ax^{3}+3x^{2}-9 and 2x^{3}+4x+a, leaves the same remainder when divided by x+3.
Chapter: [0.0203] Factorization
Prove that `(sin theta)/(1-cottheta) + (cos theta)/(1 - tan theta) = cos theta + sin theta`
Chapter: [0.05] Trigonometry
AB and CD are two chords of a circle intersecting at P. Prove that AP x PB = CP x PD
Chapter: [0.032] Circles
A bag contains 5 white balls, 6 red balls and 9 green balls. A ball is drawn at random from the bag. Find the probability that the ball is drawn is:
1) a green ball
2) a white or a red ball
3) is neither a green ball nor a white ball.
Chapter: [0.07] Probability
Rohit invested Rs. 9,600 on Rs. 100 shares at Rs. 20 premium paying 8% dividend. Rohit sold the shares when the price rose to Rs 160. He invested the proceeds (excluding dividend) in 10% Rs. 50 shares at Rs. 40. Find the:
1) original number of shares
2) sale proceeds
3) new number of shares
4) change in the two dividends.
Chapter: [0.012] Shares and Dividends
The horizontal distance between two towers is 120 m. The angle of elevation of the top and angle of depression of the bottom of the first tower as observed from the second tower is 30° and 24° respectively.
Find the height of the two towers. Give your answer correct to 3 significant figures
Chapter: [0.05] Trigonometry
The weight of 50 workers is given below:
Weight in Kg | 50-60 | 60-70 | 70-80 | 80-90 | 90-100 | 100-110 | 110-120 |
No. of Workers | 4 | 7 | 11 | 14 | 6 | 5 | 3 |
Draw an ogive of the given distribution using a graph sheet. Take 2 cm = 10 kg on one axis and 2 cm = 5 workers along the other axis. Use a graph to estimate the following:
1) The upper and lower quartiles.
2) If weighing 95 kg and above is considered overweight, find the number of workers who are overweight.
Chapter: [0.06] Statistics
A wholesaler buys a TV from the manufacturer for Rs. 25,000. He marks the price of TV 20% above his cost price and sells it to a retailer at a 10% discount on the market price. If the rate of the VAT is 8%, find the :
1) Market price
2) Retailer’s cost price inclusive of tax.
3) VAT paid by the wholesaler.
Chapter: [0.013999999999999999] Gst (Goods and Services Tax)
if `A [(3,7),(2,4)], B = [(0,2),(5,3)]` and `C = [(1,-5),(-4,6)]` Find AB - 5C
Chapter: [0.0208] Matrices
ABC is a right angled triangle with ∠ABC = 90°. D is any point on AB and DE is perpendicular to AC. Prove that:
1) ΔADE ~ ΔACB
2) If AC = 13 cm, BC = 5 cm and AE = 4 cm. Find DE and AD.
3) Find. Area of ΔADE: area of quadrilateral BCED
Chapter: [0.035] Similarity
Sum of two natural numbers is 8 and the difference of their reciprocal is `2/15`. Find the numbers.
Chapter: [0.0202] Quadratic Equations
Given `(x^3 + 12x)/(6x^2 + 8) = (y^3+ 27y)/(9y^2 + 27)`. Using componendo and dividendo find x : y.
Chapter: [0.0204] Ratio and Proportion
Construct a triangle ABC with AB = 5.5 cm, AC = 6 cm and ∠BAC = 105°
Hence:
1) Construct the locus of points equidistant from BA and BC
2) Construct the locus of points equidistant from B and C.
3) Mark the point which satisfies the above two loci as P. Measure and write the length of PC.
Chapter: [0.031] Loci
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