Question

A man sold two gas stoves for ₹8400 each. He sold one at a gain of20% and the other at a loss of 20%. Find his gain or loss %in the whole transaction.

Answer 1

Answer:

Step-by-step explanation:

Given that

Selling price of each pipe is 8400 rs

sp = ((100+g)/100)* cp

sp = ((100-l)/100)* cp

Therefore cp of 1st pipe

cp1= 8400*(100/120)=7000 rs

cost price of second pipe

cp2= 8400*(100/80) =10500 rs

hence total cp is 7000 rs + 10500rs is equal to 17500rs

total sp is 16800rs

hence cp is greater than selling price

therefore loss is 700 rs

loss percentage = (loss/cp) *100

                           =(700/17500)*100= 4%

There is direct formula for effective percentage is a%-b%+(ab/100)