NCERT Class 8
105. The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by him.
27
Jul
105. The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by him. 105. The cost of a chocolate is Rs (x + y) and Rohit bought (x + [...]
104. The height of a triangle is x^4 + y^4 and its base is 14xy. Find the area of the triangle.
27
Jul
104. The height of a triangle is x^4 + y^4 and its base is 14xy. Find the area of the triangle. 104. The height of a triangle is x^4 + y^4 and its base is 14xy. Find the area of the triangle. July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic [...]
103. The sum of (x + 5) observations is x^4 – 625. Find the mean of the observations.
27
Jul
103. The sum of (x + 5) observations is x^4 – 625. Find the mean of the observations. 103. The sum of (x + 5) observations is x^4 – 625. Find the mean of the observations. July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and Identities , Maths , [...]
102. The sum of first n natural numbers is given by the expression n^2/2 + n/2 . Factorise this expression.
27
Jul
102. The sum of first n natural numbers is given by the expression n^2/2 + n/2 . Factorise this expression. 102. The sum of first n natural numbers is given by the expression n^2/2 + n/2 . Factorise this expression. July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and [...]
101. The area of a circle is given by the expression πx^2 + 6πx + 9π. Find the radius of the circle.
27
Jul
101. The area of a circle is given by the expression πx^2 + 6πx + 9π. Find the radius of the circle. 101. The area of a circle is given by the expression πx^2 + 6πx + 9π. Find the radius of the circle. July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 [...]
100. The curved surface area of a cylinder is 2π (y^2 – 7y + 12) and its radius is (y – 3). Find the height of the cylinder (C.S.A. of cylinder = 2πrh).
27
Jul
100. The curved surface area of a cylinder is 2π (y^2 – 7y + 12) and its radius is (y – 3). Find the height of the cylinder (C.S.A. of cylinder = 2πrh). 100. The curved surface area of a cylinder is 2π (y^2 – 7y + 12) and its radius is (y – 3). [...]
99. The area of a rectangle is x^2 + 7x + 12. If its breadth is (x + 3), then find its length.
27
Jul
99. The area of a rectangle is x^2 + 7x + 12. If its breadth is (x + 3), then find its length. 99. The area of a rectangle is x^2 + 7x + 12. If its breadth is (x + 3) then find its length. July 27, 2021 Category: Chapter 14 - Factorisation , [...]
98. The area of a square is 9x^2 + 24xy + 16y^2. Find the side of the square.
27
Jul
98. The area of a square is 9x^2 + 24xy + 16y^2. Find the side of the square. 98. The area of a square is 9x^2 + 24xy + 16y^2. Find the side of the square. July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and Identities , Maths , [...]
97. The area of a square is given by 4x^2 + 12xy + 9y^2. Find the side of the square.
27
Jul
97. The area of a square is given by 4x^2 + 12xy + 9y^2. Find the side of the square. 97. The area of a square is given by 4x^2 + 12xy + 9y^2. Find the side of the square. July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and [...]
96. Factorise the expressions and divide them as directed: (vii) (3x^4 – 1875) ÷ (3x^2 – 75)
27
Jul
96. Factorise the expressions and divide them as directed: (vii) (3x^4 – 1875) ÷ (3x^2 – 75) 96. Factorise the expressions and divide them as directed: (vii) (3x^4 – 1875) ÷ (3x^2 – 75) July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class [...]