Question

By selling a chair for rupees 75, Mohan gained as much percent as its cost. calculate the cost of the chair.​

Answer 1

Answer:

25 rupees

Step-by-step explanation:

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Answer 2

Answer:

Rs. 50

Step-by-step explanation: Let CP be x.

Then profit % = x %

=> profit in Rs. = ( x / 100 ) * x = ( x ^ 2 ) / 100

=> SP = CP + Profit

=> SP = x + ( x^2 ) / 100

=> 75 = ( 100x + x^2 ) /100

=> x^2 + 100x =7500

=> x^2 + 100x - 7500 = 0

=> x^2 + 150x - 50x -7500=0

=> x ( x + 150 ) - 50 ( x + 150 ) = 0

=> ( x + 150 ) ( x - 50 ) = 0

=> x = 50 since x cant be negative as per this question.

Answer : Rs. 50