Question

Question 3.
A man sold a bicycle at 5% profit. If the cost had been 30% less and the selling price Rs.63 less, he would have made a profit of 30%. What is the cost price of the bicycle?​

Answer 1

Answer:

the cost price of the bicycle is Rs. 18

Step-by-step explanation:

let the cost price be x

if cost price is 30% less then the cost price is x/100*(100-30)= x/100*70=7x/10

the profit % was=5%

so selling price= x/100*(100+5)= x/100*105= 21x/20

now the profit%= 30%

so the selling price= 7x/10*(100+30)= 7x/10*130= 91x

91x=21x/20-63

91x - 21x/20= 63

3.5x= 63

x= 63/3.5

x= 18

so the cost price is Rs. 18