Question

a man sold a bicycle at 5pecent profit if the cost had been 30 percent less and rs 63 less he would have made made a profit of 30% what is the cp of the article

Answer 1

Let Cost of bicycle = 

According the question ((x*1.05)-63-(x*0.7))/x*0.7 = 0.3
Now solve he equation
(0.35x - 63)/0.7x = 0.3
Multiply by 0.7x both sides
0.35x - 63 = 0.21x
Subtract 0.21x from both sides
0.35x - 63 - 0.21x = 0.21x - 0.21x
0.14x - 63 = 0
Add 63 both sides
0.14x = 63
Divided by 0.14 both sides
0.14x/0.14 = 63/0.14
x = 63/0.14
x = 450
Ans = Rs. 450