Question
A man invested certain sum at simple interest of r% p.a.
such that it amounts to 160% of itself in 6 years. Find the interest earned when Rs. 2400 is invested at simple interest of r% p.a. for 3 years.Solution
Let the sum invested be Rs. ‘P’ Therefore, interest earned in 6 years = 1.6P – P = Rs. 0.6P ATQ; 0.6P = (P × r × 6) ÷ 100 Or, r = 60 ÷ 6 Or, r = 10 So, required interest earned = (2400 × 10 × 3) ÷ 100 = Rs. 720
A Shopkeeper gives 5 articles free on the purchase of every 15 articles. He also allow a discount of 20% to customer and still earn 20% profit. Find the...
Profit percentage earned on selling article 'G' is the same as the percentage loss incurred on selling article 'H'. If the cost price of article 'G' is ...
An article is marked 45% above its cost price and sold after offering a discount of Rs. 80 such that its selling price is Rs. 110 more compared to its s...
A dishonest shopkeeper pretends to sell his goods at cost price but uses false weights and gains 25%. For a weight of 1 kg he uses:
- Anita bought a pair of shoes for Rs. 750, but had to sell them for Rs. 600. Find the percentage loss incurred.
A shopkeeper purchased 35 kg of sugar at Rs. 22 per kg. He sold some of it at a profit of 8% and the rest at a profit of 16%. If the total profit he mad...
- Cost price of article M is Rs.200 less than the cost price of article N. Article N is sold at a loss of 20% and article M is sold at a profit of 25%. On th...
- Cost price of article ‘B’ is (250/7)% of selling price of article ‘A’. Article ‘A’ is sold at 40% profit and cost price of article ‘A’ is R...
When a lamp and a table are sold at 10% profit and 25% profit, respectively, the seller earns Rs. 30 more in comparison when they are sold by interchang...
The ratio of marked price, cost price and selling price of an article is 17:12:8, individually. If the difference between marked price and cost price of...
Relevant for Exams:
