1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard X
Mathematics
Representing Linear Equations for a Word Problem
The product o...
Question
The product of the digits of a two digit positive number is 24. If 18 is added to the number then the digits of the number are interchanged. Find the number.
Open in App
Solution
Let
the
digit
at
ones
place
=
x
Let
the
digit
at
tens
place
=
y
Now
,
original
number
=
10
y
+
x
Now
,
xy
=
24
⇒
y
=
24
x
.
.
.
.
.
1
Now
,
when
the
digits
are
interchanged
,
then
new
number
=
10
x
+
y
Now
,
according
to
question
:
10
y
+
x
+
18
=
10
x
+
y
⇒
x
-
y
=
2
.
.
.
.
.
.
2
Put
the
value
of
y
from
1
in
2
,
we
get
x
-
24
x
=
2
⇒
x
2
-
2
x
-
24
=
0
⇒
x
2
-
6
x
+
4
x
-
24
=
0
⇒
x
x
-
6
+
4
x
-
6
=
0
⇒
x
-
6
x
+
4
=
0
⇒
x
-
6
=
0
or
x
+
4
=
⇒
x
=
6
or
x
=
-
4
rejected
So
,
x
=
6
and
y
=
24
6
=
4
Hence
original
number
=
10
×
4
+
6
=
46
Suggest Corrections
0
Similar questions
Q.
A number consists of two digits whose sum is
8
. If
18
is added to the number, its digits are interchanged. Find the number.
Q.
Product of digits of a two-digit number is
18
. If
27
is subtracted from the number then digits interchanged mutually. Find the number.
Q.
A two digit number such that the product of its digit is 15. If 18 is added to the number, the digits interchange their places. Find the number.
Q.
A two digit positive number is such that the product of its digits is
6
. If
9
is added to the number, the digits interchange their places. Find the number.
Q.
A two-digit number is such that the product of its digit is 35. If 18 is added to the number, the digits interchange their places. Find the number.
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Basics Revisted
MATHEMATICS
Watch in App
Explore more
Representing Linear Equations for a Word Problem
Standard X Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Solve
Textbooks
Question Papers
Install app