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Byju's Answer
Standard VIII
Mathematics
Reversing the 2 Digit Numbers and Subtracting Them
The product o...
Question
The product of four consecutive odd natural numbers is 945. Find the numbers.
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Solution
Let
the
four
consecutive
odd
natural
numbers
are
:
x
,
x
+
2
,
x
+
4
,
x
+
6
Now
,
according
to
question
:
x
x
+
2
x
+
4
x
+
6
=
945
⇒
x
x
+
6
x
+
2
x
+
4
=
945
⇒
x
2
+
6
x
x
2
+
6
x
+
8
=
945
⇒
y
y
+
8
=
945
Taking
x
2
+
6
x
=
y
⇒
y
2
+
8
y
-
945
=
0
⇒
y
2
+
35
y
-
27
y
-
945
=
0
⇒
y
y
+
35
-
27
y
+
35
=
0
⇒
y
-
27
y
+
35
=
0
⇒
y
=
27
or
y
=
-
35
⇒
x
2
+
6
x
=
27
or
x
2
+
6
x
=
-
35
⇒
x
2
+
6
x
-
27
=
0
or
x
2
+
6
x
+
35
=
0
Consider
,
x
2
+
6
x
-
27
=
0
⇒
x
2
+
9
x
-
3
x
-
27
=
0
⇒
x
x
+
9
-
3
x
+
9
=
0
⇒
x
-
3
x
+
9
=
0
⇒
x
=
3
or
x
=
-
9
rejected
Consider
,
x
2
+
6
x
+
35
=
0
Now
,
a
=
1
;
b
=
6
;
c
=
35
Now
,
D
=
b
2
-
4
ac
=
6
2
-
4
×
1
×
35
=
36
-
140
=
-
104
<
0
So
,
the
equation
x
2
+
6
x
+
35
=
0
does
not
give
real
values
of
x
.
Hence
,
x
=
3
Now
,
consecutive
odd
natural
numbers
are
:
3
,
5
,
7
,
9
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