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Recent questions and answers in Class 9
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Home
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Olympiad-Math
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Class 9
Class 9
Logical Reasoning
(200)
Number Systems
(100)
Polynomials
(99)
Coordinate Geometry
(100)
Euclid Geometry
(99)
Linear Equations
(100)
Lines and Angles
(99)
Triangles, circles and quadrilaterals
(99)
Surface Areas and Volumes
(100)
Statistics and Probability
(100)
Logical and Analytical Reasoning
(50)
Everyday Mathematics
(198)
The sum of a two digit number and the number formed by interchanging its digits is 110. if 10 is subtracted from the first number, the new number is 4 more than 5 times the sum of the digits in the first number. find the first number.
olympiad
class9
math
linear equations
answered
1 hour
ago
by
pady_1
1
answer
The median of 21 observations is 18. If two observations 15 and 24 are included to the observations then the median of the new series is
olympiad
class9
math
statistics
probability
answered
Jan 12
by
prabhu4c1
1
answer
In a class of 100 students, 50 students passed in Mathematics and 70 passed in English, 5 students failed in both Mathematics and English. How many students passed in both the subjects?
olympiad
class9
math
everyday mathematics
answered
Jan 8
by
shirshsachan1999
1
answer
A solid cylinder is melted and cast into a cone of same radius .Find the ratio of their heights ?
olympiad
class9
math
surface areas
volumes
answered
Jan 7
by
aidenjackson321
1
answer
If the product of two surds is a rational number, then each one of them is called the _____ of the other.
olympiad
class9
math
polynomials
answered
Jan 6
by
usreedevi
1
answer
What is the condition for one root of the quadratic equation $ax^2 +bx +c$ to be twice of each other
olympiad
class9
math
polynomials
answered
Jan 5
by
kuldeepdihingia
1
answer
The maximum length of a pencil that can he kept is a rectangular box of dimensions 8 cm x 6 cm x 2 cm, is
olympiad
class9
math
surface areas
volumes
answered
Jan 5
by
shubhamsingh1080
1
answer
Twenty four teams are divided into 4 groups of six teams each. Within each group the teams play each other exactly once. The winners of each group then play in the semi-finals. Winners of the semi-finals play in the finals and losers for the 3 place. How many matches are played?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Jan 4
by
amit.guleria
1
answer
If (2,0) is a solution of the linear equation 2x+3y=k then the value of k is
olympiad
class9
math
linear equations
answered
Jan 3
by
info_3
1
answer
Signs of abscissa and ordinate of a point in the second quadrant are respectively
olympiad
class9
math
coordinate geometry
answered
Dec 30, 2017
by
guideme18
1
answer
A cylinder, a cone and a hemisphere are of same base and of same height . Find the ratio of their volumes?
olympiad
class9
math
surface areas
volumes
answered
Dec 26, 2017
by
omsai1974.hr
1
answer
Find the value of k if the straight line 2x+3y+4+k(6x-y+12)=0 is perpendicular to the line 7x+5y=4
olympiad
class9
math
coordinate geometry
answered
Dec 24, 2017
by
aksmn.1234.ald
1
answer
The town of Paranda is located of Green lake, The town of Akram is West of Paranda, Tokhada is East of Akram but West Paranda. Kokran is East of Bopri but West of Tokhada and Akram. If they are all in the same district, which town is the farthest West ?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Dec 22, 2017
by
theresedsouza.1967
1
answer
If x is a positive real number and x^2 = 2 then x^3 = ?
olympiad
class9
math
number systems
answered
Dec 21, 2017
by
nareshnaidana1998
1
answer
A regular hexagon is inscribed in a circle of radius r cms. What is the perimeter of the regular hexagon?
olympiad
class9
math
triangles
circles
quadrilaterals
answered
Dec 21, 2017
by
adityakanjilal04
1
answer
The diameter and height of a cylinder and a cone are equal. What is the ratio of their volume.
olympiad
class9
math
surface areas
volumes
answered
Dec 16, 2017
by
demonzenkazama
1
answer
Two parallelograms are on the same base and between the same parallels . The ratio of their areas is
olympiad
class9
math
triangles
circles
quadrilaterals
answered
Dec 2, 2017
by
www.vivek123patidar
2
answers
Diagonals necessarily bisect opposite angles in a
olympiad
class9
math
triangles
circles
quadrilaterals
answered
Nov 28, 2017
by
ranjani.hogwarts
1
answer
If A(2,2) B(-4,-4) and C(5,-8) are the vertices of a triangle, then the length of the median through vertex C is
olympiad
class9
math
coordinate geometry
answered
Nov 26, 2017
by
mehtajay515
1
answer
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is
olympiad
class9
math
lines and angles
answered
Nov 26, 2017
by
venkateshev
1
answer
4 ^(44) + 4^(44) + 4^(44) + 4^(44) = 4^x. find x
olympiad
class9
math
polynomials
answered
Nov 22, 2017
by
richamadaan07
1
answer
There are six persons A, B, C, D , E and F. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is the mother ?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Nov 16, 2017
by
karthigayini29
1
answer
Speed of a boat in still water is 9 km/hr. It goes 12 km down stream and comes back to the starting point in three hours.What is the speed of water in the stream?
olympiad
class9
math
everyday mathematics
answered
Nov 7, 2017
by
kayumhkd
1
answer
If it takes 16 days for 24 men to plough 15 acres of land, then how many days would be required by 32 men to plough 30 acres of land
olympiad
class9
math
everyday mathematics
answered
Nov 1, 2017
by
tdjpi13
1
answer
The radius of the base and the slant height of a cone is 5cm and 13 cm respectively. Find the volume of the cone .
olympiad
class9
math
surface areas
volumes
answered
Oct 25, 2017
by
ranjeet.rks68
1
answer
I left home for bringing milk between 7am and 8am. The angle between the hour-hand and the minutehand was 90° I returned home between 7 am and 8 am. Then also the angle between the minute-hand and hour-hand was 90°. At what time (nearest to second) did I leave and return home?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Oct 25, 2017
by
navneetgupta5566
1
answer
If ZEBRA can be written as 2652181, how can COBRA be written?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Oct 23, 2017
by
zaid.sarkerii9187
1
answer
A and B are young ones of C. If C is the father of A but B is not the son of C. How are B and C related
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Oct 18, 2017
by
sanjeevkumarsahil
1
answer
If cushion is called pillow, pillow is called mat, mat is called bedsheet and bedsheet is called cover, which will be spread on the floor ?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Oct 12, 2017
by
chaitanya.bontha
1
answer
‘Lines are parallel if they do not intersect’ is stated in the form of
olympiad
class9
math
euclid
geometry
answered
Oct 1, 2017
by
sahilahmadftp786
1
answer
A boy multiplied 12345679 by second, third and seventh multiple of 9, then the average of their total is _____.
olympiad
class9
math
everyday mathematics
answered
Sep 24, 2017
by
adityakumar5155
1
answer
The point whose ordinate is 4 and which lies on y axis is
olympiad
class9
math
coordinate geometry
answered
Sep 19, 2017
by
ranjani.hogwarts
1
answer
A train of length 150 m long takes 40.5 seconds to cross a tunnel of length 300 m the speed of the train(in km/hr) is
olympiad
class9
math
everyday mathematics
answered
Sep 18, 2017
by
ranjani.hogwarts
1
answer
The perpendicular distance of point (3,4) from the y axis is
olympiad
class9
math
coordinate geometry
answered
Sep 14, 2017
by
dimpalbatth
2
answers
A man is facing north-west. He turns 90° in the clockwise direction and then 135° in the anticlockwise direction. Which direction is he facing now?
olympiad
class9
math
logical
analytical
reasoning
answered
Sep 13, 2017
by
pady_1
1
answer
If the mean of x+2, 2x+3, 3x+4 and 4x+5 is x+2 then find the value of x
olympiad
class9
math
statistics
probability
answered
Sep 13, 2017
by
pady_1
1
answer
Two equal circles of radius r intersect such that each passes through the centre of the other. The length of the chord AC is
olympiad
class9
math
triangles
circles
quadrilaterals
answered
Sep 13, 2017
by
anjeelathapa123
1
answer
The cost of fencing a circular field at the rate of Rs. 10 per meter is Rs.440. What is the radius of the circular field.
olympiad
class9
math
triangles
circles
quadrilaterals
answered
Sep 12, 2017
by
madhusidam6
1
answer
Ashish leaves his house at 20 minutes to seven in the morning, reaches Kunal’s house in 25 minutes, they finish their breakfast in another 15 minutes and leave for their office which takes another 35 minutes. At what time do they leave Kunal’s house to reach their office ?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Sep 12, 2017
by
nitinsoni1273
1
answer
. Greek’s emphasised on :
olympiad
class9
math
euclid
geometry
answered
Aug 29, 2017
by
praneethreddym
1
answer
The number of interwoven isosceles triangles in Sriyantra (in the Atharvaveda) is:
olympiad
class9
math
euclid
geometry
answered
Aug 29, 2017
by
praneethreddym
1
answer
The father's age is six times his son's age . Four years hence the age of father will be four times his son's age , The present age in years of the son and the father are respectively
olympiad
class9
math
linear equations
answered
Aug 16, 2017
by
dollyakshaya3
1
answer
The sum of the incomes of Aand B is more than that of C and D taken together. The sum of incomes of A and C is the same as that of B and D taken together. Moreover, A earns half as much as the sum of the incomes of B and D. Whose income is highest ?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Aug 12, 2017
by
vikashtiwary2730
1
answer
A train 280 m long is moving at 60kmph. The time taken by the train to cross a tunnel 220 m long is
olympiad
class9
math
everyday mathematics
answered
Jul 30, 2017
by
jankimaradiamansi
2
answers
The seventh root of x divided by eigth root of x is
olympiad
class9
math
number systems
answered
Jul 10, 2017
by
ranjani.hogwarts
1
answer
If 'A $ B' means 'A is the father of B', 'A B' means 'A is the mother of B', 'A @ B' means 'A is the wife of B', then which of the following means 'M is the grandmother of N' ?
olympiad
class9
math
logical reasoning
logical_reasoning
answered
Jul 9, 2017
by
gauravm975
1
answer
Euclid’s fifth postulate is (A) The whole is greater than the part. (B) A circle may be described with any centre and any radius. (C) All right angles are equal to one another. (D) If a straight line falling on two straight lines makes the interior angles on the same side of it taken together less than two right angles, then the two straight lines if produced indefinitely, meet on that side on which the sum of angles is less than two right angles.
olympiad
class9
math
euclid
geometry
answered
Jul 8, 2017
by
deetishaa
1
answer
Euclid stated that all right angles are equal to each other in the form of
olympiad
class9
math
euclid
geometry
answered
Jul 8, 2017
by
deetishaa
1
answer
In an examination, a studnet was asked to find 3/14 of a certain number. By mistake, he found 3/4 of it. His answer was 150 more than the correct answer. Find the given number.
olympiad
class9
math
everyday mathematics
answered
Jul 8, 2017
by
kamalsoni441
1
answer
Choose that set of numbers from the options that is similar to the given set. (81, 77, 69)
olympiad
class9
math
logical
analytical
reasoning
asked
Aug 27, 2015
by
pady_1
0
answers
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