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Byju's Answer
Standard XII
Mathematics
Manipulation of a linear equation
If three numb...
Question
If three numbers
(
x
,
y
,
z
)
=
(
2
3
,
7
6
,
8
9
)
,
then the L.C.M. of
x
,
y
,
z
is
A
56
9
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B
56
3
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C
28
9
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D
28
3
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Solution
The correct option is
B
56
3
L.C.M. of
2
3
,
7
6
,
8
9
is
L.C.M.(2,7,8)
H.C.F.(3,6,9)
=
56
3
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0
Similar questions
Q.
If three numbers
(
x
,
y
,
z
)
=
(
2
3
,
7
6
,
8
9
)
,
then the H.C.F. of
x
,
y
,
z
is
Q.
Solve the following equations:
2
x
−
4
y
+
9
z
=
28
7
x
+
3
y
−
5
z
=
3
9
x
+
10
y
−
11
z
=
4
Q.
If three numbers
(
x
,
y
,
z
)
=
(
2
3
,
7
6
,
8
9
)
and
108
(
L.C.M.
×
H.C.F.
)
=
p
×
q
where
p
,
q
are coprime to each other, then the total number of posiible pairs of
(
p
,
q
)
is
Q.
Factors of
27
x
3
+
y
3
+
z
3
−
9
x
y
z
are:
Q.
If
(
x
+
y
)
3
−
z
2
=
4
,
(
y
+
z
)
2
−
x
2
=
9
and
(
z
+
x
)
2
−
y
2
=
36
, then find the value of
x
+
y
+
z
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