Math, asked by souravo3475, 1 year ago

Rohan sold a calculator to Vishal at 20 percent profit Vishal sold it to Naresh at 5% profit if Naresh paid 441 it what was the cost price of the calculator

Answers

Answered by Anonymous
5

Let, the initial C.P. be,'x'

20% of x = 20x/100

So, Vishal paid for it = (x+20x/100)

                                   = (100x+20x)/100

                                   = 120x/100

5% of 120x/100 = (120x/100)*(5/100)

                          = 120x*5/100*100

                          = 600x/10000

So, Naresh paid for it = (600x/10000)+(120x/100)

                                    = (600x+12000x)/10000

                                    = 12600x/10000

By condition,

12600x/10000=441

or, x = 441*100/126

or, x = 441*50/63

or, x =7*50

or, x = 350

(Ans): rs.350

Answered by mkrishnan
2

Answer:

350

Step-by-step explanation:

let cost of calculator be      = 100k

Rohan sold a calculator to Vishal at 20 percent profit

vishal paid                           = 100k  +100k[20/100]

                                              =100k +20k

                                              =120 k

Vishal sold it to Naresh at 5% profit

Naresh  paid                        = 120k  + 120k[5/100]

                                             = 120k +6k

                                              =126k

but he paid   441

                                     126k = 441

                                          k =441/126

cost of calculator be      = 100k  =44100/126

                                                     =350

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