Question

Q.150.A person buy two articles i.e. type A at Rs 500 and
type B at Rs 1500. He sold type A article at x% profit and
mark up type B article 2x% above the cost price and gave
x% discount at the time of the sale. By this he earn (x -6)
% profit. Find the value of 'x'. Ssc cgl,ibps clerk
(a) 15% (b) 18% (c) 25% (d) 20% (e) 30%​

Answer 1

Answer:

25%

Step-by-step explanation:

please mark me as brailantly

Answer 2

Step-by-step explanation:

solving by alligation

in type B article

successive discount = 2x - x - (2x X x / 100)

= x - x^2 / 50

Article --- > Type A Type B

profit x x - x^2 / 50

overall profit x-6

CP ratio 1 3

Cross Subtraction from type A side

x - x - 6 = 6 ( x will be cancelled)

3 = 6 ( from above alligation ratio)

As 3=6 so, 1 = 2

Now, as alligation rule

cross subtraction from type B side

(x-6) - ( x - x^2 / 50 ) = 2

x^2 / 50 = 8

x^2 = 400

x = 20

Answer 20%