NCERT Class 10
Which of the following equations has 2 as a root? (A) x^2 – 4x + 5 = 0 (B) x^2 + 3x – 12 = 0 (C) 2x^2 – 7x + 6 = 0 (D) 3x^2 – 6x – 2 = 0
22
Nov
Which of the following equations has 2 as a root? (A) x^2 – 4x + 5 = 0 (B) x^2 + 3x – 12 = 0 (C) 2x^2 – 7x + 6 = 0 (D) 3x^2 – 6x – 2 = 0 Which of the following equations has 2 as a root? (A) x^2 – [...]
Which of the following is not a quadratic equation? (A) 2(x – 1 )^2 = 4x^2 – 2x + 1 (B) 2x – x^2 = x^2 + 5 (C) (√2x + √3)^2+ x^2= 3x^2 – 5x (D) (x^2 + 2x)^2 = x^4+ 3 + 4x^3
22
Nov
Which of the following is not a quadratic equation? (A) 2(x – 1 )^2 = 4x^2 – 2x + 1 (B) 2x – x^2 = x^2 + 5 (C) (√2x + √3)^2+ x^2= 3x^2 – 5x (D) (x^2 + 2x)^2 = x^4+ 3 + 4x^3 Which of the following is not a quadratic equation? (A) [...]
Which of the following is a quadratic equation? (A) x^2 + 2x + 1 = (4 – x)^2 + 3 (B) -2x^2 = (5 – x) (2x – 2/5 ) (C) (k+ 1)x^2 + 3/2 x = 7,where k = -1 (D) x^3 – x^2= (x – 1 )^3
22
Nov
Which of the following is a quadratic equation? (A) x^2 + 2x + 1 = (4 – x)^2 + 3 (B) -2x^2 = (5 – x) (2x – 2/5 ) (C) (k+ 1)x^2 + 3/2 x = 7,where k = -1 (D) x^3 – x^2= (x – 1 )^3 where k = -1 (D) x^3 [...]
It can take 12 hours to fill a swimming pool using two pipes. If the pipe of larger diameter is used for four hours and the pipe of smaller diameter for 9 hours, only half of the pool can be filled. How long would it take for each pipe to fill the pool separately?
22
Nov
It can take 12 hours to fill a swimming pool using two pipes. If the pipe of larger diameter is used for four hours and the pipe of smaller diameter for 9 hours, only half of the pool can be filled. How long would it take for each pipe to fill the pool separately? It [...]
Jamila sold a table and chair for rupees 1050 making a profit of 10% on a table and 25% on chair if she had taken a profit of 25% on the table and 10% on the chair she would have got rupees 1065. Find the cost price of each.
22
Nov
Jamila sold a table and chair for rupees 1050 making a profit of 10% on a table and 25% on chair if she had taken a profit of 25% on the table and 10% on the chair she would have got rupees 1065. Find the cost price of each. 47x+21y=162 Solve the following pair of [...]
Determine algebraically the vertices of the triangle formed by the lines. 5x-y=5 , x+2y=1 and 6x+y=17.
22
Nov
Determine algebraically the vertices of the triangle formed by the lines. 5x-y=5 , x+2y=1 and 6x+y=17. Determine algebraically the vertices of the triangle formed by the lines. 5x-y=5 x+2y=1 and 6x+y=17. November 22, 2020 Category: Chapter 3 - Pair of Linear Equations in Two Variables , Maths , NCERT Class 10 ,
Draw the graph of line x = -2 and y = 3.write vertices of figure formed by these lines, the x-axis and the y-axis. also find the area of figure.
22
Nov
Draw the graph of line x = -2 and y = 3.write vertices of figure formed by these lines, the x-axis and the y-axis. also find the area of figure. Draw the graph of line x = -2 and y = 3.write vertices of figure formed by these lines the x-axis and the y-axis. also [...]
Draw the graph of pair of linear equations x-y+2=0 and 4x-y-4=0. calculate the area of triangle formed by lines so drawn and the x-axis.
22
Nov
Draw the graph of pair of linear equations x-y+2=0 and 4x-y-4=0. calculate the area of triangle formed by lines so drawn and the x-axis. Draw the graph of pair of linear equations x-y+2=0 and 4x-y-4=0. calculate the area of triangle formed by lines so drawn and the x-axis. November 22, 2020 Category: Chapter 3 - [...]
Solve the following pair of linear equation 21x+47y=110, 47x+21y=162
22
Nov
Solve the following pair of linear equation 21x+47y=110, 47x+21y=162 47x+21y=162 Solve the following pair of linear equation 21x+47y=110 November 22, 2020 Category: Chapter 3 - Pair of Linear Equations in Two Variables , Maths , NCERT Class 10 ,
For which the values of p and q will the following pair of linear equations have infinitely many solutions 4x+5y=2, (2p+7q)x+(p+8q)y=2q-p+1
22
Nov
For which the values of p and q will the following pair of linear equations have infinitely many solutions 4x+5y=2, (2p+7q)x+(p+8q)y=2q-p+1 (2p+7q)x+(p+8q)y=2q-p+1 For which the values of p and q will the following pair of linear equations have infinitely many solutions 4x+5y=2 November 22, 2020 Category: Chapter 3 - Pair of Linear Equations in Two [...]