The selling price of 12 eggs is equal to the cost price of 15 eggs find the gain per cent

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The selling price of 12 pens is equal to the cost price of 15 pens . find the gain percent.

Posted by: rishu priyadarshi in Olympiad{RMO+INMO+IMO} 1 decade ago, Total Answer(s): 5

Answer(s)

Let the CP of each pen be Rs.x.

Then,

CP of 12 pens=Rs.12

SP of 12 pens=CP of 15 pnes=Rs.15

now,gain=SP-CP=Rs.(15-12)=Rs.3

gain%=gain/cp*100

         =(3/12*100)%=25%

Hence,the gain=25%.

By: arishta jain, 1 decade ago

Let the C.P of 1 pen be Rs.1

Therefore,

The C.P of 15 pens = Rs. 15

Given,

C.P of 15 pens= S.P of 12 pens.

So, S.P of 12 pens = Rs.15

Selling Price of 1 pen = Rs. 1.25

Gain= Rs. 0.25

Gain percent= Gain x 100/C.P %

  = 0.25 x 100/1 %

  =25/1 %

  = 25 %

Therefore, the gain percent is 25%

Hope You understood it... :-)

By: Sriram Vudayagiri, 1 decade ago

12SP=15CP

SP/CP= 15/12

15-12=3

3/12*100=25%

By: RAHUL KUMAR, 3 years ago

12SP=15CP

SP/CP= 15/12

15-12=3

3/12*100=25%

By: RAHUL KUMAR, 3 years ago

SP OF 12 PENS =CP OF 15 PENS 

SP OF 1 PENS =   R. 1

SP OF 12 PENS=  R. 12

SP OF 15 PENS = R. 15

CP OF 15 PENS =R. 12

NOW, SP >CP 

SO, GAIN = SP -CP

                 =R. 15 - R. 12 =R. 3

GAIN % = GAIN  *100. =3/12  *100 =25%

                   CP

Answer=25%

By: RAHUL KUMAR, 3 years ago

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The sold price of 12 eggs is equal to cost price of 16 eggs. Find the profit percentage

Solution

Let selling price of 12 eggs =XThen the cost price of 16 eggs =XThe selling price of 1egg=X12Therefore, the cost price of 1egg=X16We know that selling price > cost priceTherefore, the profit = Selling price – Cost price=X12–X16=X48Profit%=(ProfitCP)x100%=X48X16×100=1648×100=1003= 3313%Hence, the profit percentage is 3313%

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Given:

Selling price of 12 eggs is equal to the cost price of 15 eggs.

To do:

Here, we have to find the gain percentage.

Solution:

Let the cost price of 15 eggs be $a$.

So,

Selling price of 12 eggs $=a$

Selling price of 1 egg $=\frac{a}{12}$

Selling price of 15 eggs $=\frac{15a}{12}$

Now,

Profit $=$ SP of 15 eggs $-$ CP of 15 eggs

Profit$=\frac{15a}{12}-a$

Profit$=\frac{15a-12a}{12}$

Profit$=\frac{3a}{12}$

Profit$=\frac{a}{4}$

Therefore, profit % is as below,

Profit %$=\frac{Profit}{CP}\times100\%$

Profit%$=\frac{\frac{a}{4}}{a}\times100\%$

Profit%$=\frac{1}{4}\times100\%$

$\mathbf{Profit\ \%\ =\ 25\ \%}$

So, the answer is 25%.

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Updated on 10-Oct-2022 10:29:35

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