Question
A circular coil of wire consisting of 120 turns, each of
radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the centre of the coil? (π = 3.14 )Solution
A shopkeeper sold a school bag at a profit of 30%. Had he sold the school bag at 15% profit he would have earned Rs.105 less. Find the cost price of the...
The marked price of the washing machine is 60% above its cost price. The seller offers two successive discounts of 10% and 10%, respectively. If he make...
- An individual purchased a bike for Rs. 25,000 and a helmet for Rs. 1,500. He sold the bike at a loss of 12% and the helmet at a profit of 20%. Calculate th...
A trader marked an article 50% above its cost price and sold it after allowing a discount of 30%. If the transaction resulted in a profit of Rs. 32, the...
- A dealer sold a furniture item for Rs. 300 after allowing a discount of ‘q%’ on its marked price. If the marked price of the item is Rs. 400, then find...
- Priya bought a painting for Rs. 32,000 and sold it for Rs. 36,800. What was her profit percentage?
- The selling price, cost price and marked price of a bag are in the ratio 7:5:10. If the profit is Rs. 800, calculate the discount allowed on the marked pri...
An article is priced 25% higher than its cost price and is sold at a discount of 10% on the marked price. If the profit made from the sale is Rs. 50, de...
The ratio of cost price to the marked price of an article is 5:8. The article had been marked above its cost price by Rs. 360. If the article was sold a...
- The cost price of a gadget is Rs. 3,250. It is tagged 25% above its cost and sold after a flat discount of Rs. 275. What is the approximate profit percenta...
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