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Standard VIII
Mathematics
Direct Proportion
Question
If
y
varies directly as
x
and
y
=
10
when
x
=
5
, find the constant of proportionality
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Solution
Verified by Toppr
We have
y
x
=
k
(since
y
∝
x
).
Hence
k
=
y
x
=
10
5
=
2
.
Thus
k
=
2
.
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