WINTER ASSIGNMENT_29.12.2017

Dass & Brown World School

Class VIII

Mathematics -  Assignment

1. The area of a trapezium is 180 cm² and its   

    height is 9 cm. If one of the parallel side is longer      

    than the other by 6 cm . Find the length of the

   longer of the parallel sides.

2. Verify Euler’s formula for Triangular pyramid.

3. Express the following rational number in   

    simplest form .

     a)    b)

4. Find 10 rational number between  and  .

5. Suman had Rs 3000. She spent  of her money

    on notebooks and  of the remainder on

   stationary items. How much money is left with her.

6. Find the multiplicative inverse of

7. Find x if 7^2x+1 ÷ 49 = 343

8. The diameter of the sun is ( 1.4 x 10⁹)m and the

    diameter of earth is ( 1.2756x 10⁷)m. Show that the

    diameter of sun is nearly 100 times the diameter of

    earth.

9. Find the square root of 66049.

10. What least number must be added to 5607 to make

      the sum a prefect square.

11. Find the square root of 0.4225

12. If   x⁴ + 1/x²

13. Find the value of

14. Divide 2x² + 8x – 5x – 5 by 2x²– 3x + 5

15. The denominator of a rational number is greater than

       its numerator by 3 . If 3 is subtracted from numerator

      and 2 is added to its denominator , the new number

      becomes   . Find original number.

16. Find C.P if SP= Rs 657.60 , loss = 4%

17. At what rate % p.a will Rs 640 amount to 774.40 in 2

      years ,when compounded annually.

18. In how many years will Rs 6250 amount to Rs 7290 at

      8% p.a is Rs 93 . Find sum

19. In a hostel 75 students had food provisions for 24 days     

      If 15 students leave the hostel. For how many days

     would the food last.

20. Draw the graph  P=3x

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REVISION ASSIGNMENT 01

Class VIII                         REVISION ASSIGNMENT 01

1.The value of a machine depreciates at the rate of 10% per    

    annum . It was purchased 3 years ago. If its present value

     is Rs 291600. How much was it purchased ?

2. At what rate percent per annum will Rs 640 amount to Rs

    774.40 in 2 years when compounded annually.

3. If 16% of a number is 72 , find the number.

4. Divide Rs 7000 among A, B, C  such that A gets 50% of

     what B gets and B gets 50% of what c gets?

5.Plot the following points on graph and name the quadrant

    i) A( -5,2)   ii) B(3,-3)  iii) C( -2,-3)  iv) D( 4,6) 

MATHS ASSIGNMENT_18.11.2017

                        Class VIII                 Maths Assignment _18.11.2017
1.Express as a percentage
i) 6/25  ii) 13/6
2.What percent of 1 kg is 5 g ?
3.If 16% of a number is 72, find the number.
4.Amit purchased an old car for Rs 73500 . He spent Rs 10300 on its repairs and paid Rs 2600 for its insurance. Then he sold it to mechanic for Rs 84240. What was his percentage gain or loss ?
5.A man bought apples at 10 for Rs 75 and sold them at Rs 75 per dozen. Find his loss/profit percentage.
6.Aman bought a watch for Rs 1980 including VAT at 10% . Find the original price of the watch .
7.Rohin deposited a sum of Rs 6250 in the state bank of India for 1 year , compounded half yearly at 8 % per annum. Find the compound interest he gets .
8.Arun took a loan of Rs 390625 from kuber finance . If the company charges interest at 16% per annum, compounded quarterly .What amount will discharge his debt after one year?
9.Plot each of the following points on a graph paper.
A(2,5)
B(4,-2)
C(-6,-4)
D(4,-3)
E(-5,-2)
F(2,-3)
10.Draw the graph of the function
T=4x

ASSIGNMENT_18.11.2017

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ASSIGNMENT_09.11.2017

ASSIGNMENT

REVISION ASSIGNMENT_30.08.2017

                       DASS AND BROWN WORLD SCHOOL

Class VI                   Revision Assignment

1. Subtract the sum of -234 and 168 from the sum of 148

    and -245

2. Subtract the sum of 5x²-4y+6z and -7x²+y-3z from the

    sum of 12x²-y+3z and -3x²+5y -8z

3. If A=7x²+5xy-8y  B= 5x²+2yx-3y   C= 2x²+5xy -2y

    Then find A + B – C

4. Solve and verify

    6(1–4x) + 2(2 + 5x) = 53

5.If p = –1 , q = –2 , r = 3, find the value of

      i) pq + r   ii) p²r + q

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REVISION TEST_24.08.2017

HOMEWORK_21.08.2017

*Page no- 39--> Do "CCE test paper 2" Q1 to Q6

*Page no=62 --> Do "CCE test paper 3" Q1 to Q6

Regards 

Mr. Devender 

PRACTICE QUESTIONS_21.07.2017

PRACTICE QUESTIONS_21.07.2017

                       PRACTICE QUESTIONS_21.07.2017

1.  SA marks of 30 students of a class are given below:-

62,80,75,84,73,60,10,45,30,84,19,14,25,92,56,45,78,36,98,63,14,25,36,25,14,25,96,85,74,58

Construct a frequency table with class intervals 10-20 (where 20 is not included)

2. Find 10 rational number between 2/3 and 3/4

3. Divide the sum of 65/12 and 8/3 by their difference .

4. Find the value of x        5^2x+1 ÷ 25 = 125

5. Write in standard form 0.000000685

6. Divide 9x – 6 x² + x³ - 2 by x - 2

7. Evaluate by using identity 103²

8. Factorise  6x²-17x-3

9. A drum full of rice weighs 40 1/6 kg. If the empty drum weighs 13 ¾ kg ,find

     the weight of rice in the drum .

10 .Multiply ( 2x+y) ( 3x+2y+7)

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ASSIGNMENT_20.05.2017

PRACTICE QUESTIONS_22.04.2017

PRACTICE QUESTIONS_22.04.2017

1. Find four rational number between -3/4 and 1/2 .

2.A farmer has a field of area 49 4/5 ha .He wants to divide it equally among his one son and two daughters. Find the area of each one's share  ... ( ha is hectares )

3. The product of two rational number is -7 .If one of the number is -10 .Find the other number.

4.Find the reciprocal of 2/5 x ( -4/9)  .

5.Arrange in descending order
1/4 , 13/16 , 5/8

6. Solve -3 + 6 - 6 + 9 - 3 - 4

7. Divide 3 1/2 by 6 1/4 .

8. Represent 13/5 and - 6 1/4 on number line.

9. Solve 1 1/3 + 3 1/6 + 9 1/7

10. What number should be subtracted from -2/3 to get -1/6 .


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MATHS SAMPLE PAPER _17.02.2017

REVISION TEST 03

CLASS VIII Maths  REVISION TEST 3 (MATHS)

1.What is the Perimeter of  Square with side 12 cm.  

2.What is the area of rectangle with length 1cm and breadth

2cm.                          

3.Find the volume of a cube whose edge 4m.

4.The diagonals of a rhombus are 7.5 cm and 12 cm. Find

its area. 

5. A cylindrical well of radius 3.5 m. and depth 14 m. is dug.  Find the capacity of the well.

6. Find the height of a cuboid whose base area is 180 cm² and volume is 900 cm³?

7.  In a trapezium, the parallel sides measures 8 cm and 20 cm.  If the non parallel sides are each 10 cm., find the area of the trapezium.

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REVISION TEST (1,2) QUESTIONS _07.02.2017

Assignment(Comparing quantities)_21.01.2017

                                             8^H Class Maths Assignment_21.01.2017

1.Find S.P if

i) M.P=Rs 5450 and discount=5%

ii) M.P= Rs 1200 and discount =15%

2.Find M.P if

i)S.P= Rs. 495, discount =1%

ii)S.P=Rs.9250 discount 7.5%

3.Find discount in %

i) M.P=Rs 625 and S.P=Rs.562.50

ii)M.P=Rs 900 and S.P=Rs 873

4.A watch worth Rs. 6300 is offered for sale at Rs.5140 . What percent of discount is offered during the sale ?

5.Raman bought a mobile phone for himself. He got a discount of Rs.1960.What was the M.P of phone if the discount is 25% .

6.Music CD originally priced at Rs.120 is sale for 25% off . What is the S.P ?

7.There are two stores A and B . Both charge Rs 750 for a video game .This week the video game is sold for Rs.600 at store B and 25% off at store A. At which store is the game less expensive?

8.Anchal bought a second hand car for Rs 225000 and spent Rs 25000 for repairing . If he sold it for Rs. 325000.What is the profit percent ?

9.A lady bought an air-conditioner for Rs. 15200 and spent Rs.300 and Rs 500 on its transportation and repair respectively. At what price should she sell it to make a gain of 15% ?

10.Find the compound interest if Principal =Rs 10000 R= 10 % compounded half yearly. Find interest for 6 month and amount after 6 months.

11.Find the difference between compound interest and simple interest on Rs. 45000 at  12% per annum for 4 years.

12.Lemons were bought at Rs 60 per dozen and sold at the rate of Rs 50 per 10. Find the gain or loss percent.

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ASSIGNMENT BASED ON EXPONENTS_13.01.2017