Inner radius of the ball= (12-6) =6cm Required volume= 4π/3 (12³ -6³) =4π/3(1728-216) = =4π/3 ×1512=2016π
A fruit vendor bought 300 bananas at Rs 20 per 10 bananas. 125 bananas got spoiled and hence thrown. He sold 12 dozen bananas at the rate of Rs 15 per d...
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...
A shopkeeper planned to sell 150 shirts each priced at Rs 1,250 in a particular year. Each shirt, if it had been sold at the mentioned price would have ...
The ratio of cost price and selling price of a shirt is 7:8 respectively. The shirt was marked up by 25% above its cost price, and sold after giving Rs....
A shopkeeper initially marked up the price of an item by 50% above its cost. To make a sale, he offered two consecutive discounts: the first was 20%, an...
A manufacturer sells an article to a wholesaler at a profit of 20%. The wholesaler sells it to a retailer at a profit of 25%, and the retailer sells it ...
A person buys books at Rs. 300 for 5 and sells them at Rs.740. How many books must he sell in order to earn profit of Rs. 3,520?
A product is sold at a profit of 25%. If the cost price is increased by 50% and the selling price remains the same, what will be the percentage of profi...
A shopkeeper bought 60 pencils at a rate of 4 for Rs. 5 and another 60pencils at a rate of 2 for Rs.3. He mixed all the pencils and sold them at a rate ...
A trader bought an article for Rs. 1600 and marked it 25% above of its cost price. If he sold it after giving a discount of Rs. 160 then find the profit...
