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Recent questions in Class 8
Questions
>>
Olympiad-Math
>>
Class 8
Zero has _________ reciprocal
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
The sum of additive inverse and multiplicative inverse of 2 is
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
Find the value of x
−
5
9
=
10
x
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
By what number should
−
33
16
be divided to get
−
11
4
?
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
Find the value of
(
−
2
)
3
×
3
2
+
5
2
−
3
5
×
1
6
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
The value of
[
(
−
6
)
+
5
]
÷
[
(
−
2
)
+
1
]
is
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
What number should be added to
7
12
to get
4
15
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
If product of two number is
25
3
8
if one of them is
15
9
40
, then other number is
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
Evaluate :
−
12
5
+
−
7
20
+
3
14
+
1
7
+
−
1
10
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
What number should be added to
−
5
8
so as to get
5
9
?
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
Divide the sum of
65
12
and
8
3
by their difference.
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
The cost of
7
2
3
meters of rope
12
3
4
Find its cost per meter.
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
If
7
m
=
49
63
, find the value of m.
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
Find out a rational number lying halfway between
2
7
and
3
4
olympiad
math
ch-1
rational number
class8
asked
Jan 12, 2015
by
meena.p
1
answer
Find the reciprocal of
−
4
5
×
6
−
7
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
Simplify
(
−
12
7
×
35
16
)
−
(
9
5
×
4
3
)
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
Two rational numbers with different numerators are equal , if their numerators are in the same ________ as their denominators.
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
The product of two numbers is
−
20
9
. If one of the number is 4. find the other number
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
A rational number is such that when you multiply it by
5
2
and add
2
3
to the product , you get
−
7
12
What is the number ?
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
The ages of Rahul and Hari are in the ratio
5
:
7
Four years later the sum of their ages will be
56
years . What are their present age ?
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
Three consecutive integers add upto
51
. What are these integers
olympiad
math
ch-1
rational number
class8
asked
Jan 11, 2015
by
meena.p
1
answer
Three consecutive integers add upto
51
. What are these integers ?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Two numbers are in the ratio
5
:
3
If they differ by
18
, what are the number ?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Sum of two numbers is
95
. If one exceeds the other by
15
, find the number
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
The base of an isosceles triangles is
4
3
c
m
. The perimeter of the triangle is
4
2
15
c
m
What is the length of either of the remaining equal sides ?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
The perimeter of a rectangular swimming pool is
154
m
Its length is 2 m more than twice is breadth , What are the length and breadth of the pool ?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
2
answers
Is
8
9
the multiplicative inverse of
−
1
8
? Why or Why not ?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Multiply
6
13
by the reciprocal of
−
7
16
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Find
−
2
3
×
3
5
+
5
2
−
3
5
×
1
6
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Divide
−
16
21
by
−
4
3
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
If 24 trousers of equal size can be prepared in 54 metres of cloth, what length of cloth is required for each trousers.
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Divide the sum of
13
5
and
−
12
7
by product of
−
31
7
and
−
1
2
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
What number should be subtracted from
−
2
3
to get
−
1
2
?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
Find the value of
(
−
9
5
)
+
(
−
8
5
)
÷
5
2
×
(
−
5
4
)
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
If you subtract
1
2
from a number and multiply the result by
1
2
you get
1
8
, What is the number ?
olympiad
math
ch-1
rational number
class8
asked
Jan 9, 2015
by
meena.p
1
answer
The additive inverse of of a negative number
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
Find the multiplicative inverse of
(
−
13
19
)
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
The product of two numbers is
14
15
. If one of the number is
(
−
20
17
)
, Find the other ?
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
Raju earns Rs 16,000 per month. He spends
1
4
of his income on food;
3
10
of the remainder on house rent and
5
21
of the remainder on education of children . How much money is still left with him ?
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
Rational Numbers are not closed under
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
Rational number
a
b
is greater than
c
d
if
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
A rational number
p
q
is said to be in the simplest form if the HCF of p and q is
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
The sum of two rational number is
−
1
2
. IF one of them is
−
9
10
. find the other
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
Simplify :
2
−
1
2
3
+
2
3
4
−
1
1
4
olympiad
math
ch-1
rational number
class8
asked
Jan 8, 2015
by
meena.p
1
answer
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