Question

A fruit seller brought 20 kg potatoes at ₹6 per kg and 30 kg potatoes at ₹7 per .at what rate per kg should he sell them to gain 25%

Answer 1

Topic . profit- loss


Question.


A fruit seller brought 20 kg potatoes at ₹6 per kg and 30 kg potatoes at ₹7 per .at what rate per kg should he sell them to gain 25%.




ANSWER.

bought 20 kg potatoes by rs 6

=>C P of. 20kg potatoes = 20×6=120 rs

bought 30kg potatoes by rs 7

=> C.P of 30 kg potatoes = 30×7=210 rs


so total 210+120= 330 rs he spend to bought 50 kg potatoes.


so . CP of. 50 kg of potatoes = 330 rs


AVERAGE C.P of 1 kg potatoes


$\frac{330}{50}$




$\frac{33}{5}$


$6.6 \: \frac{rs}{kg}$


TO. get 25 % profit

$net \: c.p + \frac{c.p \times 25}{100} = s.p$

so,

$s.p = 6.6 + \frac{6.6 \times 25}{100}$


$s.p = 6.6 + \frac{165}{100}$



$s.p = 6.6 + 1.65$



$s.p = 8.25 \: rs$

Answer 2

Solutions :-


Given :
A fruit seller brought 20 kg potatoes at ₹6 per kg and 30 kg potatoes at ₹7 per kg.

Cost of 20 kg potatoes = 20 × 6 = ₹ 120
Cost of 30 kg potatoes = 30 × 7 = ₹ 210
Total cost of 50 kg potatoes = ₹ (120 + 210) = ₹ 330
Cost Price of 1 kg potatoes = ₹ (330 / 50) = ₹ 6.60


Find the Selling price of 1 kg potatoes at the gain of 25% :-

S.P = C.P + gain% of C.P
= 6.60 + 25% of 6.60
= 6.60 + 0.25 × 6.60
= 6.60 + 1.65
= 8.25


Hence,
Fruit seller has to sell the fruit at ₹ 8.25 per kg to gain 25%