Question

a dealer sells a toy for rs24 and gains as much percent as the cost price of the toy . find the cost price of the toy.​

Answer 1

Step-by-step explanation:

cost price=Rs. x

selling price=Rs.24

profit=Rs.(x-24)

profit%=cost price=x . . . .(given)

we know,

profit%=profit÷cost price×100

therefore

x=(x-24) × 100÷x

x^2=2400-100x

x^2+100x-2400=0

after factorisation

x=-120 or x=20

but price cannot be negative

we discard x=∆-120

therefore cost of toy is Rs 20

ANSWER-20