Question

By selling lemons at the rate of ₹72per dozen,a woman loses10%of her investment.what would be the percentage of her gain or loss ,if she sold them at₹700 per hundred ?

Answer 1

Let x be the Original Price

Rate per dozen = Rs. 72

Loss on selling I dz = 10% of x

⇒x- 10% of x= 72

⇒9x/10= 72

x= Rs. 80

So,Original Price per dozen is Rs. 80

Now if sold Rs. 720 per 100

then,Rate per dozen Banana = 720/100 * 12

= Rs. 86.40

∴Profit % = ΔRate/Original Price * 100%

=6.40/80 * 100%

=8%