Question

A dealer sold 3/4 th of his article at a gain of 20% and the remaining at cost price. Find the gain percent earned by him the whole transaction.

Answer 1

Hi ,

Let the cost price of an article = Rs 100

i ) cost price of 3/4 the article = (3/4× 100)

c.p1= Rs 75

gain = g = 20%

ii ) cost price of remaining article = 100 - 25

c.p2 = Rs 25

iii ) Total selling price = cp1(100+g)/100+cp2

s.p = 75[( 100+20)/100] + 25

s.p= 90 + 25

= Rs115

amount gained by

whole transaction = s.p - c.p

total gain = 115 - 100

= Rs 15

Therefore ,

Total gain % = [ ( total gain )/c.p ]×100

= ( 15/100 ) × 100

= 15%

I hope this helps you.

: )

Answer 2

Answer: 15

Step-by-step explanation:

Let the no of articles be 40 units

3/4 = 30 ; 1/4= 10