Question

8.1
Cost price is R720 with a discount of 40%​

Answer 1

Answer:

Let cost price of article A = Rs x.

Marked price = x.(1+40/100) = Rs.(7x/5).

1st discount = 10 % of Rs.(7x/5)= Rs (7x/50).

Amount payable = Rs (7x/5) - Rs (7x/50)/= Rs.(63x/50).

2nd discount = 10 % of Rs.(63x/50) = Rs. (63x/500)

Selling price = Rs.(63x/50) - Rs.(63x/500) = Rs. (567x/500).

Selling price - cost price = profit.

Rs.(567x/500) - x = Rs 53.60

or. 67x/500 = 536/10.

or. 10× 67x = 500×536.

or. x = (500×536)/(10×67) = Rs 400.

But selling price = Rs 400×(1 + 30/100) = Rs 400×(13/10) = Rs 520. Answer.

Answer 2

Answer:

Cost price is 720 discount =40%

Cost without discount is = 100%- 40%= 60%

=60%×40%=24

=720×24

=17289