Bissoy.com
Doctors Medicines MCQs Q&A

A man purchased 150 pens at the rate of Rs. 12 per pen. He sold 50 pens at a gain of 10%. The percentage gain at which he must sell the remaining pens so as to gain 15% on the whole outlay is = ?

A man purchased 150 pens at the rate of Rs. 12 per pen. He sold 50 pens at a gain of 10%. The percentage gain at which he must sell the remaining pens so as to gain 15% on the whole outlay is = ? Correct Answer $$17\frac{1}{2}$$%

According to the question,
Pen × Profit (%) = Total Profit
Total 150 pens × 15 = 2250
50 × 10 = 500
100 × a = 1750
a = 17.5
∴ Remaining profit% of pen = 17.5% or $$17\frac{1}{2}$$%

Related Questions

At a stationary shop, it costs Tk. 185 for 4 gel-pen, 8 ball -point pens and 1 marker pen and Tk. 315 for 7 gel-pens, 15 ball point pens and 1 marker pen. What would be the cost of 1 gel-pen, 1 ball -point pen and 1 marker pen?
A fruit seller purchased certain quantity of fruits on Mon and can sell half of it in the morning and from the remaining he could sell half in the evening on the same day. On Tue, he purchased similar quantity as he purchased on Mon and mixes it with remaining quantity of fruits from previous day and sold 3/4th of total on that day if he left with 15 kg fruits on Tue, then how much purchased on Mon? 
A man purchased a pen and a book. He sold the book at 10% loss and the pen at 20% profit thereby making no profit and no loss during the whole transaction. If he sold the book at 5% profit and the pen at 20% profit, he will get a profit of Rs.60. Find the cost price of the pen?
In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: A fruit seller sold 40% of his apples at a price of Rs. 80 per kg. Then he sold 30% of the remaining apples at a price of Rs. 100 per kg. Later, he sold 75% of the remaining apples for Rs. 120 per kg, and further remaining apples at Rs. 60 per kg. If he earned a total of Rs. 11762.50 from selling all his apples, how many apples did he have? Quantity B: 20% of the fruits in a shop are apples, while 40% of the remaining fruits are bananas. Also, 50% of the remaining fruits are mangoes. If the remaining fruits are 16 kg of pineapples and 20 kg of grapes, how many kg fruits are there in the shop?
The following question has three statements. Study the question and the statements and decide which of the statement(s) is necessary to answer the question. A stationary store had blue, black and red pens in the ratio 9 ∶ 8 ∶ 1. How many total pens did the store had? I. If 200 blue pens and 100 black pens were sold, the ratio becomes 5 ∶ 6 ∶ 1. II. If 50 blue and 50 red pens were bought, the ratio becomes 5 ∶ 4 ∶ 1. III. If 50 black pens were sold and 100 red pens were bought, the ratio becomes 9 ∶ 7 ∶ 3.
Out of the total pens, 10% of pens are black. 10% of remaining pens are blue. 20% of remaining pens are red. The remaining 648 pens are green. How many total pens are there?
A shopkeeper purchased 90 pens and the cost price of each pen is Rs. 10 and he sold it in two parts, the first part at 20% profit and sold the second part at 10% profit. If he sold all 90 pens at a certain price and got a 15% profit. If the profit earns in the second condition is more than the first condition and the difference in profits from both the conditions is Rs. 40. Find how many pens were sold at 20% profit.
After selling X notebooks, a man earns the profit equal to selling price of Y pens while selling X pens, he losses the amount equal to selling price (Y + 1) notebooks. The numerical values of profit percentage and loss percentage are equal and CP of a notebook is half the CP of a pen. The ratio of selling price of pen and notebook is 2 : 3. From the given statement which of the following can be determined? A. Value of X. B. Value of Y. C. The cost price of pen and notebook.
A box contains a certain number of pens of different prices. There is N number of blue pens of Rs. 25 each, the number of red pens for Rs. 30 each are 20 less than blue pens. The price of Green pens is Rs. 10 each which is 50 less than the red pens. Total price of box is Rs. 3900 then find total number of pens in box.
There are six students, P, Q, R, S, T, and U who have a different number of pens - 2, 4, 5, 7, 9, and 12 (not necessarily in the same order). The number of pens Q has is a prime number. U has 2 more pens than Q. The number of pens R has is a multiple of 4 but not a multiple of 3. P has fewer pens than Q, but has more pens than S. Who has the second highest number of pens?