Question

1. Mathi purchased a walkman from her friend. She then sold it for Rs.90.Had it been sold for Rs.105. The gain would have been 1/4 of the former loss. What is the cost price of the walkman

Answer 1

Answer: The cost price of the walkman is Rs.102.

Step-by-step explanation:

Suppose, the cost price of Walkman= x

Case 1: when she sold it for Rs.90

Loss= x-90

Case 2: when she sold it for Rs.105

Gain= 105-x

Now, according to the question,

(105-x)=1/4(x-90)

Multiplying the above equation by 4, we get:

420-4x=x-90

5x= 420+90=510

x=510/5

x=102

Answer 2

Answer:

102

Step-by-step explanation:

gain=SP-CP

loss =CP-SP

according to question

(105-CP) =(1/4)(CP-90)

510/4=5cp/4

510=5cp

cp=102