Question
A man invested certain sum at simple interest of r% p.a.
such that it amounts to 124% of itself in 10 years. Find the interest earned when Rs. 10000 is invested at simple interest of r% p.a. for 3 years.Solution
Let the sum invested be Rs. ‘P’ Therefore, interest earned in 10 years = 1.24P – P = Rs. 0.24P ATQ; 0.24P = (P × r × 10) ÷ 100 Or, r = 24 ÷ 10 Or, r = 2.4 So, required interest earned = (10000 × 2.4 × 3) ÷ 100 = Rs. 720
A Shopkeeper gives 2 articles free on the purchase of every 10 articles. He also allows a discount of 20% to customer and still earn 25% profit. Find th...
Vista Publications sold a Notebook for Rs. 150 and made a profit of 20% on its Cost Price (CP) and sold a Diary for Rs. 330 and made a profit of 10% on ...
A dishonest seller, at the time of selling and purchasing uses weight 22% less and 30% more per kg respectively. Find the approx. percent profit earned ...
Mayank gives 25% discount to his customer but he sells only smuggled goods and as a bribe he pays 10% on the cost price. Find what should be the Marked ...
When a person sold an article, his profit% is 45% of the selling price. If the cost price is increased by 60% and the selling price remains the same, th...
A shopkeeper sells an item for Rs. 360 after allowing two successive discounts of 'x%' and 20% on the marked price of Rs. 600. Find the value of 'x'.
A dealer marks his article 50% above the cost price and gives a discount of 20% on it. If he later marked his article 75% above the cost price and gave ...
A seller sold a vehicle for Rs. 81,000 with the loss of 10%. At what price be sold to earn 10% profit?
A shopkeeper marked an article P% above its cost price and sold it for Rs. 748.8 after giving a discount of 20%. If the shopkeeper had a loss of 6.4% on...
Find the profit percentage earned on a school bag if it was sold at Rs.1472 after offering a discount of 20% and the marked price of a school bag is Rs...
