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CDS Model Paper 1 Mathematics
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© examsnet.com
Question : 3
Total: 100
A reduction of
20
%
in the price of sugar enables a purchaser to obtain
2
1
2
kg
more for Rs 160 . Find the original price per kg of sugar.
₹ 12
₹ 20
₹ 16
₹ 18
Validate
Solution:
Total amount used for purchasing
=
₹
160
.
A reduction of
20
%
in the price means, now a person gets
5
2
kg
for
₹
32
and this is the present price of the sugar.
∴ Present price per
kg
=
32
5
×
2
=
₹
12.8
Let the original price be
₹
x
. Then new price is arrived after reduction of
20
%
on it.
⇒
x
×
0.8
=
12.8
or
x
=
₹
16
© examsnet.com
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