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Mathematics
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Class 8
Solar System
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Mathematics
mcqs by everyone
In ordered pair (y, z), ‘y’ is called
second co-ordinate
first co-ordinate
co-efficient
constant
(Profit + cost) price is equal to
selling price
Loss
marked price
discount
In triangle ABC, if angle A = 89°, b = 13.5 cm and a = 17 cm then angle B is
68°
58°
52.6°
62°
Susan wants to buy 3.2 m make a floor length frock with littleflair.
If material she bought is $12.5 for 0.8m then cost of material per meter is
$15.625
$17.625
$18.265
$19.625
If a matrix has equal number of columns and rows then it is said to be a/an
identical matrix
square matrix
rectangular matrix
row matrix
Marked price of a fan is $850, it is sold for $800.
percentage discount allowed is
0.07
0.065
0.09
0.058
Law which does not hold in multiplication of matrices is known as
distributive law
commutative law
associative law
Inverse law
Exterior angles of any polygon sum up to
270°
180°
90°
360°
Form of tax which have to pay by buyer on manufactured items at time of purchase is known as
Indirect Tax
Excise duty
Direct tax
Sales tax
Christopher has baked 300 cookies and sold 210 cookies, Peter has baked 400 cookies and sold 320 cookies while Jennifer has baked 450 cookies and sold 380cookies.
Out of Christopher, Peter and Jennifer, one who has sold more cookies (with name and percentage) is
Peter with 80% sold cookies
Christopher with 70% sold cookies
Jennifer with 84% sold cookies
Peter with 85% sold cookies
Product of q³ and q² is equal to
q5
q6
q7
Q
If 125a = 625 then value of 'a' is
1 1/3
2 1/3
3 1/4
4 1/3
Right bisectors of sides of a triangle are
Isosceles
collinear
concurrent
reflective
Point P in Cartesian plane is located by an ordered pair called
(c, b, a)
(b, a)
(a, b)
(a, b, c)
By converting 62.7m² into km², answer will be
0.0627km²
6270km²
0.00627km²
0.0000627km²
Middle most observation in an arranged data set is known as
median
Mean
Mode
standard deviation
Considering equation x = b² - cd⁄10, then if b = 6, c = 2 and d = 4, value of 'x' will be
2.8
6.8
4.8
5.8
How many times between 3 O’clock and 6 O’clock will hands of a clock coincide
5 times
3 times
4 times
2 times
3π⁄2 radians are equal to
60°
180°
270°
90°
If an algebraic expression is exactly divisible by two or more expressions, then expression is said to be
rational expression
irrational expression
common multiple
second expression
Total number of observations , which are below a certain value are known as
variances
class boundaries
class marks
cumulative frequency
If following pattern is considered 2 x
(2 +
2) = 8, 3 x
(3 +
2) = 15, 4 x
(4 +
2) = 24, 5 x
(5 +
2) = 35,
. .
. .
. .
. .
. .
. . ., then value of 'a' in this pattern a x
(a +
2) = 168 will be
18
12
14
16
Decimal representation are neither terminating nor repeating in blocks for
rational numbers
linear fraction
quadratic fraction
irrational numbers
Harry bought a new digital camera for $2000.
If it captures 150 pictures in 10 minutes then number of pictures camera can take in one second is
0.25 pictures per second
0.35 pictures per second
0.30 pictures per second
0.15 pictures per second
Number 0.000043 in form of scientific notation should be
4.3 × 104
4.3 × 10−5
4.3 × 106
4.3 × 105
If 52a10 is divided by 4a8 then answer will be
18a²
13a²
15a²
21a²
By solving inequality 3
(a -
6) < 4 + a, answer will be
a < 9
a < 11
a < 12
a < 13
If three quantities a, b and c are related as a : b : : b : c, then c is called
continued proportional
mean proportional
fourth proportional
third proportional
For Cosine Rule of any triangle ABC, b² is equal to
a³ + c³ - 3ab cos A
a² + c² - 2ac cos B
a² - c² + 2ab cos A
a² - c² 4bc cos A
Which one is rational number
√3
7⁄√4
3 + 4√7
3⁄5
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