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Byju's Answer
Standard VII
Mathematics
Applications (Word Problem)
Two numbers a...
Question
Two numbers are in the ratio 3 : 5 and their sum is 96. The larger number is
(a) 36
(b) 42
(c) 60
(d) 70
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Solution
Let the larger number be x.
Then, the smaller number be (96 − x).
According to the question,
96
-
x
x
=
3
5
⇒
96
-
x
×
x
×
5
x
=
3
×
x
×
5
5
⇒
5
96
-
x
=
3
x
⇒
480
-
5
x
=
3
x
⇒
3
x
+
5
x
=
480
⇒
8
x
=
480
⇒
8
x
8
=
480
8
⇒
x
=
60
Thus, the larger number is 60.
Hence, the correct option is (c).
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