1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VIII
Mathematics
Inverse Proportion
x 2 3 5 ...
Question
x
2
3
5
6
10
y
15
10
b
5
3
Identify the inverse proportional quantities.
A
4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
6
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
10
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
D
6
The given example is of inverse proportion.
by definition,
x
∝
1
y
i.e.
x
=
K
1
y
, where
K
is constant of proportionality
∴
x
y
=
K
x
×
y
=
2
×
15
=
30
=
K
now,
5
×
b
=
30
∴
b
=
6
Answer is option C
Suggest Corrections
0
Similar questions
Q.
x
2
4
20
15
y
3
7
10
12
z
10
5
1
4
/
3
Observe the table and find the quantities which are in inverse proportion
Q.
Mark (✓) against the correct answer
If
1
x
:
1
y
:
1
z
=
2
:
3
:
5
,
then, x : y : z = ?
(a) 2 : 3 : 5
(b) 15 : 10 : 6
(c) 5 : 3 : 2
(d) 6 : 10 : 15
Q.
Observe the values and find the quantities which are in direct proportion
x
:
[
4
6
8
10
]
y
:
[
2
3
4
5
]
z
:
[
1
2
3
4
]
Q.
Using division of polynomials, state whether
(i) x + 6 is a factor of x
2
− x − 42
(ii) 4x − 1 is a factor of 4x
2
− 13x − 12
(iii) 2y − 5 is a factor of 4y
4
− 10y
3
− 10y
2
+ 30y − 15
(iv) 3y
2
+ 5 is a factor of 6y
5
+ 15y
4
+ 16y
3
+ 4y
2
+ 10y − 35
(v) z
2
+ 3 is a factor of z
5
− 9z
(vi) 2x
2
− x + 3 is a factor of 6x
5
− x
4
+ 4x
3
− 5x
2
− x − 15