Question

A shopkeeper promises to sell his goods at x% profit but he uses 12.5% less weight thus gain 50%. Find the value of x​

Answer 1

Step-by-step explanation:

Let the cost price be=₹ 100 per kg

Loss %= X%

Hence SP=₹ 100- X per kg

per kg he gives 25 % less i.e. He gives 750 g

Hence actually ₹ 100-X is the Price obtained on selling 750 g

hence he get per kg =₹ (100-X)x1000/750

=₹ 400/3 -4X/3

when gain is 20 % he get ₹ 120

Hence 400/3 -4X/3=120

which gives X=10%

Hope it helps you