Question
A bag of cost price of Rs. 10000 is marked up by a
certain percentage, and a discount percent of twice the markup percent is offered on it. If there is a loss of 25% in the transaction, then find the discount percent offered?Solution
ATQ, Selling price of the bag = 0.75 × 10000 = Rs. 7500 Let the markup percentage be x% and the discount percentage offered be 2x%. Therefore, Marked price = 10000 + x% of 10000 = Rs. (10000 + 100x) Discount = 2x% of (10000 + 100x) Therefore, selling price = 10000 + 100x – 200x = 7500 Or, x2 + 100x – 2500 = 0 On solving, x = −100 and 10 Therefore, Discount percentage = 2x=20%.
Without stopping the speed of the train is 130 kmph, with stopping the speed of the train is 65 kmph.Find the stop time of the train?
720 metres long train crosses a man who is moving in the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 20 se...
Two trains ‘G’ and ‘H’ of equal lengths are running on parallel tracks at speeds of 30 m/s and 90 m/s, respectively. If they can cross each othe...
A train crosses a 250-metre-long platform in 18 seconds, and a tunnel 60% longer than the platform in 27 seconds. Find the speed of train in km/h.
A train crosses a 300-metre-long bridge in 20 seconds, and the same train crosses a tunnel twice the length of the bridge in 35 seconds. Find the speed ...
Train Q of length 360m can cross a pole in 12sec and it can cross train P running in opposite direction in 100/7 sec. If the speed of train P is 2/5 of ...
Two cyclists start from villages R and S which are 234 km apart. One starts from R at 6:45 a.m. at 36 km/h. Another from S at 7:45 a.m. at 54 km/h towar...
Train M, ‘x’ metres long crosses (x – 30) metres long platform in 22 seconds while train N having the length (x + 30) metres crosses the same plat...
Train M, ‘x’ metres long crosses (x – 35) metres long platform in 25 seconds while train N having the length (x + 35) metres crosses the same plat...
Two trains of length 200m and 160m respectively are running on parallel lines of rails. When running in the same direction the faster train passes the s...
Relevant for Exams:
