Question

A bike costing Rs40,000 one year ago now costs Rs 30,000. Find the percent decrease

Answer 1

Answer:

75%

Step-by-step explanation:

The current price=  The previous price x percentage by which the price  

                                                                    decreased/ increased    

         Rs.30,000 = Rs. 40,000    x    y /100 (by  considering that the price    

                                                                       decreased by y%)

             y/100    = Rs.30,000 / Rs. 40,000

                      y = 3/4 x 100

                        = 3 x 25 = 75%

When doing calculations, do the calculation in reverse with the answer you got and see if you get the answer required

For this,

Rs.30,000 = Rs.40,000 x 75/100

Rs.30,000 = Rs. 400 x 75 (40,000 is divided by 100 to get 400)

Rs.30,000 = Rs.30,000