Question

A dealer allows a discount of 10℅ and still gains by 10℅.what should be the marked price if the cost price is 900?

Answer 1

Let the marked price be x.

Given cost price = 900.

Gain = 10%.

Discount=10%

We know that Marked price - discount = Cost price + profit

                         x - 10x/100 = 900 + 10*900/100

                        x - x/10 = 900 + 90

                          9x/10 = 990

                            9x = 9900

                                x = 1100.

                         
 The marked price = 1100.

Answer 2

Answer:

Marked price=1100

Step by step explanation;

Given

Cost price (c.p) = 900rs

Discount (D) = 10 percent rs

we know that,

in every time c.p = 100 percent

S.P = 100-10 = 90 percent

Now, a dealer still gains 10 percent

S.p = 100+10 = 110 percent

Now,

If 900= 110 percent

then 90 = ?

let the marked price be X

90:900=110:X

Product of extremes = product of means

90×X=900×110

X = 900×110/90

X=90×110/9

X=10×110

X=1100

Therefore, Marked price =1100

HOPE THIS HELPS YOU