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Byju's Answer
Standard VII
Mathematics
Changing Scale (Including Flags)
The sum of th...
Question
The sum of three times a number and
15
is
42
. Find the number.
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Solution
Let the number be
x
.
Now according to the question-
3
x
+
15
=
42
⇒
3
x
=
42
−
15
⇒
x
=
27
3
=
9
Hence the number is
9
.
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