Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Recent questions in CBSE XI
Questions
>>
CBSE XI
CBSE XI
Math
Physics
Chemistry
Biology
The longest side of a triangle is three times the shortest side and third side is $2\;cm$ shortest than the longest side. If the perimeter of the triangle is at least $61\; cm$ find the minimum length of the shortest side.
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q25
asked
Jul 28, 2014
by
meena.p
1
answer
Find all pair of consecutive even positive integers, both of the which are larger than 5 such that their sum is less than 23.
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q24
asked
Jul 28, 2014
by
meena.p
1
answer
Find all pairs of consecutive odd positive integers both of which are smaller than 10 such that their sum is more than 11.
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q23
asked
Jul 28, 2014
by
meena.p
1
answer
To receive Grade $'A'$ in a course, one must obtain an average of $90$ marks or more in fine. examination (each of $100$ marks ) . If sunita's mark in first four examinations are $87,92,94 $ and $95$ find the minimum marks that sunita must obtains in the fifth examination to get grade $'A'$ in the corse
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q22
asked
Jul 28, 2014
by
meena.p
1
answer
Ravi obtained 70 and 75 marks in first two unit tests. Find the minimum marks he should get in third test to have an average of at least 60 marks.
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q21
asked
Jul 28, 2014
by
meena.p
1
answer
Solve the given inequality and show the graph of the solution on number line: $ \large\frac{x}{2} <\frac{(5x-2)}{3} - \frac{(7x-3)}{5}$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q20
asked
Jul 28, 2014
by
meena.p
1
answer
Solve the given inequality and show the graph of the solution on number line: $ 3(1-x) <2 (x +4)$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q19
asked
Jul 28, 2014
by
meena.p
1
answer
Solve the given inequality and show the graph of the solution on number line: $ 5x-3 < 3x -5$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q18
asked
Jul 28, 2014
by
meena.p
1
answer
Show that the statement "If $x$ is an integer and $x^2$ is even, then $x$ is also even." using contrapositive method.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-5
sec-b
easy
q3
asked
Jul 26, 2014
by
rvidyagovindarajan_1
1
answer
Show that the statement "For any real numbers $a$ and $b$, $a^2=b^2$ implies that $a=b$" is not true by giving counter example.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-5
sec-a
easy
q2
asked
Jul 26, 2014
by
rvidyagovindarajan_1
1
answer
Show that the statement " If $x$ is real number such that $x^3+4x=0$, then $x$ is 0." is true using contra positive method.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-5
sec-b
easy
q1-3
asked
Jul 26, 2014
by
rvidyagovindarajan_1
1
answer
Show that the statement " If $x$ is real number such that $x^3+4x=0$, then $x$ is 0." is true using contradiction method.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-5
sec-b
easy
q1-2
asked
Jul 26, 2014
by
rvidyagovindarajan_1
1
answer
Solve the given inequality and show the graph of the solution on number line: $ 3x-2 <2 x +1$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q17
asked
Jul 26, 2014
by
meena.p
1
answer
Solve the inequality for real $x: \large\frac{(2x-1)}{3} \geq \frac{(3x-2)}{4} -\frac{(2-x)}{5}$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q16
asked
Jul 26, 2014
by
meena.p
1
answer
Solve the inequality for real $x: \large\frac{x}{4} < \frac{(5x-2)}{3} - \frac{(7x-3)}{5}$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q15
asked
Jul 26, 2014
by
meena.p
1
answer
Solve the given inequalities for real $x: 37 -(3x+5) \geq 9x -8 (x-3)$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q14
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the inequality for real $x: 2(2x+3) -10 < 6(x-2)$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q13
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the inequality for real $x: \large\frac{1}{2} \bigg(\large\frac{3x}{5} +4 \bigg) $$ \geq \large\frac{1}{3} $$(x-6)$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q12
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the given inequality for real $x: \large\frac{3(x-2)}{5} \leq \large\frac{5(2-x)} {3}$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q11
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the inequality for real $x, \large\frac{x}{3} > \frac{x}{2} $$+1$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q10
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the given inequality for real $x. x +\large\frac{x}{2} +\frac{x}{3} $$ <11$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q9
asked
Jul 25, 2014
by
meena.p
1
answer
Show that the statement " If $x$ is real number such that $x^3+4x=0$, then $x$ is 0." is true using direct method.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-5
sec-b
easy
q1-1
asked
Jul 25, 2014
by
rvidyagovindarajan_1
1
answer
Solve the inequality for real $x, 3(2-x) \geq 2(1-x) $
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q8
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the inequality for real $x 3(x-1) \leq 2(x-3)$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q7
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the inequality for real $x: 3x-7 > 4x -5$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q6
asked
Jul 25, 2014
by
meena.p
1
answer
Solve the given inequality for real $x: 4x+3 < 5x +7$
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q5
asked
Jul 25, 2014
by
meena.p
1
answer
Solve $3 x+8 > 2$ when (i) x is an integer (ii) x is a real number
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q4
asked
Jul 25, 2014
by
meena.p
1
answer
Solve $5 x-3 < 7 $ when (i) x is an integer (ii) x is a real number
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q3
asked
Jul 25, 2014
by
meena.p
1
answer
Solve $-12 x > 30$ when (i) x is a natural number (ii) x is an integer
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q2
asked
Jul 25, 2014
by
meena.p
1
answer
Solve $24 x < 100$ when (i) x is a natural number (ii) x is an integer
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q1
asked
Jul 25, 2014
by
meena.p
1
answer
An equilateral triangle is inscribed in the parabola $ y^2 = 4 ax$, where one vertex is at the vertex of the parabola. Find the length of the side of the triangle
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q8
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
A man running a racecourse notes that the sum of the distances from the two flag posts from him is always 10 m and the distance between the flag posts is 8 m. Find the equation of the posts traced by the man.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q7
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
Find the area of the triangle formed by the lines joining the vertex of the parabola $ x^2 = 12y $ to the ends of its latus rectum.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q6
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
A rod of length 12 cm moves with its ends always touching the coordinate axes. Determine the equation of the locus of a point P on the rod, which is 3 cm from the end in contact with the x-axis.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q5
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
An arch is in the form of a semi-ellipse. It is 8 m wide and 2 m high at the centre. Find the height of the arch at a point 1.5 m from one end.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
difficult
misc
p264
q4
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
The cable of a uniformly loaded suspension bridge hangs in the form of a parabola. The roadway which is horizontal and 100 m long is supported by vertical wires attached to the cable, the longest wire being 30 m and the shortest being 6 m. Find the length of a supporting wire attached to the roadway 18 m from the middle.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
difficult
misc
p264
q3
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
An arch is in the form of a parabola with its axis vertical. The arch is 10 m high and 5 m wide at the base. How wide is it 2 m from the vertex of the parabola?
cbse
class11
ch11
conic-sections
bookproblem
sec-c
difficult
misc
p264
q2
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
If a parabolic reflector is 20 cm in diameter and 5 cm deep, find the focus.
cbse
class11
ch11
conic-sections
bookproblem
sec-b
medium
misc
p264
q1
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
For the statement "If a quadrilateral is a parallelogram then its diagonals bisect each other"' is the statement "If the diagonals of a quadrilateral bisecyt then it is a parallelogram" contra positive or converse?
cl51025
cl51021
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q4-4
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
For the statement "If a quadrilateral is a parallelogram then its diagonals bisect each other"' is the statement "If the diagonals of a quadrilateral do not bisect then it is not a parallelogram" contra positive or converse?
cl51021
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q4-3
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
For the statement "If you live in Delhi then you have winter clothes.' is the statement "If you have winter clothes then you live in Delhi" contra positive or converse?
cl51021
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q4-2
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
For the statement "If you live in Delhi then you have winter clothes.' is the statement "If you do not have winter clothes then you do not live in Delhi" contra positive or converse?
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q4-1
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
Write the statement "To get 'A' in the class it is necessary that you do all the exercises of the book." in 'if-then' form.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q3-4
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
Write the statement "A quadrilateral is a parallelogram if its diagonals bisect each other" in 'if-then' form.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q3-3
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
Write the statement " The banana tree will bloom if it stays warm for a month.' in 'if-then' form
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q3-2
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
Write the statement "You get a job implies that your credentials are good" in 'if-than' form.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-a
easy
q3-1
asked
Jul 22, 2014
by
rvidyagovindarajan_1
1
answer
Find the equations of the hyperbola satisfying the given conditions : Foci $(0, \pm \sqrt{ 10} )$ , passing through $(2,3 )$
cbse
class11
ch11
conic-sections
bookproblem
sec-b
difficult
exercise11-4
p262
q15
asked
Jul 21, 2014
by
thanvigandhi_1
1
answer
Find the equations of the hyperbola satisfying the given conditions : vertices $(\pm 7,0 ) , e = \large\frac{4}{3}$
cbse
class11
ch11
conic-sections
bookproblem
sec-b
medium
exercise11-4
p262
q14
asked
Jul 21, 2014
by
thanvigandhi_1
1
answer
Find the equations of the hyperbola satisfying the given conditions : Foci $(\pm 4, 0)$, the latus rectum is of length $12$
cbse
class11
ch11
conic-sections
bookproblem
sec-b
medium
exercise11-4
p262
q13
asked
Jul 21, 2014
by
thanvigandhi_1
1
answer
Write the converse and contra positive statements of the statement "$x$ is an even number implies that $x$ is divisible by $4$.
cbse
class11
ch14
mathematical-reasoning
bookproblem
exercise14-4
sec-b
easy
q2-5
asked
Jul 21, 2014
by
rvidyagovindarajan_1
1
answer
Page:
« prev
1
...
6
7
8
9
10
11
12
...
44
next »
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...