If a person sells 4 apples of 50 paise from a shop at the rate of 3 apples of 50 paise, then find the profit percentage.
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Answer:
Let total number of apples be x.
5/6 of x apples bought at 4 apples for Rs. 5.
∴CP of one apple =
(6×5)
(5×4)
x=Rs.
3
2
x
Rest apples=x−
6
5
x=
6
x
6
x
, bought at 3 apples for 5
CP=
(6×5)
(3x)
=
10
x
.
So Average CP =
2
(
3
2x
)+(
10
x
)
=
30
23x
=0.76x per apple.
Now, average selling price =
11
20x
=1.81x
Gain = Rs 15
⇒1.81x−0.76x=15
⇒1.05x=15
⇒x=14.28
Thus, no. of apples = 14.
Step-by-step explanation:
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