CBSE ADDA

1. Determine the point on the graph of the linear equation x + y=6, whose ordinate is twice its abscissa. Q2. How many solution(s) of the equation 3x+2=2x-3 are there on the           i) Number Line ii) Cartesian plane Q3. Draw the graph of the equation represented by the straight line which is parallel to the x-axis and 3 units above it. Q4. Find the solutions of the linear equation x+2y=8, which represents a point on i) x axis ii) y-axis Q5. For what values of c, the linear equation 2x+cy=8 has equal values of x and y as its solution. Q6. Give the geometrical interpretations of 5x+3=3x-7 as an equation i) in one variable ii) In two variables Q7. Draw the graph of the equation 3x+4y=6. At what points, the graph cut the x-axis and the y-axis. Q8. At what point does the graph of equation 2x+3y=9 meet a line which is parallel to y -axis at a distance 4 units from the origin and on the right side of the y-axis. Q9. Express the following linear equations in th

Topic: Linear equations in two variables Q1.  Determine the point on the graph of the linear equation x + y=6, whose ordinate is twice its abscissa. Q2.  How many solution(s) of the equation 3x+2=2x-3 are there on the           i) Number Line            ii) Cartesian plane Q3.  Draw the graph of the equation represented by the straight line which is parallel to the x-axis and 3 units above it. Q4. Find the solutions of the linear equation x+2y=8, which represents a point on  i) x axis  ii) y-axis Q5.  For what values of c, the linear equation 2x+cy=8 has equal values of x and y as its solution. Q6. Give the geometrical interpretations of 5x+3=3x-7 as an equation    i) in one variable  ii) In two variables Q7. Draw the graph of the equation 3x+4y=6. At what points, the graph cut the x-axis and the y-axis. Q8. At what point does the graph of equation 2x+3y=9 meet a line which is parallel to y -axis at a distance 4 units from the origin and on the right side of the y-axis.   Quadrilate

CBSE MATH STUDY: ASSIGNMENT FOR THE SESSION 2011-2012 Class: VIII ASSIGNMENT FOR THE SESSION 2011-2012 Class: VIII Subject : Mathematics Term -II Trapezium 1. The parallel sides of a trapezium are 25 cm and 11 cm, while its non parallel sides are 15cm and 13cm. find the area of the trapezium.  2. The parallel sides of a trapezium are 78 cm and 52 cm, while its non parallel sides are 28cm and 30cm. find the area of the trapezium. 3. The parallel sides of a trapezium are 12cm and 36cm respectively. Its non parallel sides are each equal to 15cm. Find the area of the trapezium. AREA  1. Verify Euler’s formula for a) Square pyramid b) Pentagonal prism c) tetrahedron  2. The area of a rhombus is equal to the area of a triangle whose base and the corresponding altitude  are 24.8 cm and 16.5 cm respectively. If one of the diagonal of the rhombus is 22 cm, find the length of the other diagonal. 3. The floor of a rectangular hall has a perimeter 250m. If the cost of paining the four

The year 2003 was observed as th e INTERNATIONAL YEAR OF FRESHWATER to make people aware of this dwindling natural resource. 22nd MARCH is celebrated as the WORLD WATER DAY. NCERT CBSE Class VII Water ‘A Precious Natural Resource’ Q. Fill in the blanks with the appropriate answers: (a) People obtain ---------through tube wells and hand pumps.[groundwater] (b) Three forms of water are solid, liquid and ---------[vapour.] (c) The water bearing layer of the earth is ----------[ aquifer] (d) The process of water seepage into the ground is called ---------[ infiltration.] (e) The process of changing of water into its vapour is called---------[ evaporation.] (f) The process of changing water vapour into water is called ---------[condensation.] (g) No rainfall for a year or more may lead to ---------- in that region.[drought]  (h) Excessive rains may cause ----------- [flood.] Q. So much of water available on our planet Earth, but why do we still feel a shortage of wat

Class 07 Science Chapter Water Q. Why are we left only tiny fraction of water for use even if about 75 % of the earth surface is covered with water. Ans: This is because most of the water about 97% of surface water is in sea and ocean as salty water that is unfit for domestic and agricultural use. Q. What are the various uses of water? Ans: Water is used for various activities such as agriculture, industries, cooking, cleaning utensils, bathing, washing clothes, and, most importantly, for drinking. Q. What are the three state of water? Ans: There are three states of water a. Solid state: ice, snow and hail  b. liquid: Rain, river, sea    c. Gaseous: Water vapour Q what is water cycle? Ans: The circulation of water from atmosphere to the earth and vice versa is called the water cycle. Q.What is evaporation? Ans: The water present on the surface of the ocean evaporates by the sun’s heat. This process of conversion of water from liquid state to vapour state is called evaporati

CBSE MATH STUDY: CBSE 7th Maths Question Papers |Sample Papers 7th Ratio and Proportion Complete the following statements using the help box: 1. The comparison of two quantities of the same kind by means of division is termed as ____. 2. The two quantities to be compared are called the ________ of the ratio. 3. The first term of the ratio is called the _________ and the second term is called the _______. 4. In a ratio, only two quantities of the __________ unit can be compared. 5. If the terms of the ratio have common factors, we can reduce it to its lowest terms by cancelling the  _____. 6. When both the terms of a ratio are multiplied or divided by the same number (other than zero) the  ratio remains _________ .The obtained ratios are called__________. 7. In a ratio the order of the terms is very important. (Say True or False) 8. Ratios are mere numbers. Hence units are not needed. (Say True or False) 9. Equality of two ratios is called a ______