Byju's Answer
Standard IX
Mathematics
Ratio and Proportion
If 2: 3:: 6: ...
Question
If 2 : 3 :: 6 : x are in proportion, then x =
A
18
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B
12
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C
9
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D
4
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Solution
The correct option is
C
9
Given, 2 : 3 :: 6 : x
We can write the above proportion as
2
3
=
6
x
On cross multiplying,
x
=
18
2
∴
x = 9
Suggest Corrections
1
Similar questions
Q.
2:3 :: 6:x are in proportion. Find x.
Q.
If 3 : 4 and
x
: 24 are in proportion, then x is 18
Q.
If
A
=
0
2
3
-
4
and
k
A
=
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3
a
2
b
24
, then the values of k, a, b, are respectively
(a) −6, −12, −18
(b) −6, 4, 9
(c) −6, −4, −9
(d) −6, 12, 18
Q.
Let
f
:
R
→
R
be a differentiable function having
f
(
2
)
=
6
,
f
′
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2
)
=
(
1
48
)
. Then
lim
x
→
2
∫
f
(
x
)
6
4
t
3
x
−
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d
t
equals
Q.
The value of
x
in
3
+
x
=
15
is
.
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