(1024)n/5 × 4(2n+1)/ 16n× 4(n- 1) ⇒ (4⁵)n/5 × 4(2n+1) /42n × 4(n-1) ⇒ 4(n+2n+1)/4(2n+n- 1) ⇒ 4(3n+1)/(4(3n- 1) ⇒ 4(3n+1-3n+1) ⇒ 4² = 16
A man sold an article for 40% profit. If the selling price of the article had been Rs. 210 less and the cost price had been 50% less, then the profit pe...
A shopkeeper made a profit of 40% by selling an article for Rs. 280. If he had sold it after allowing a discount of 15% on its selling price, then find ...
Pankaj purchased a machine for Rs. 79,000 and spent Rs. 4000 on repair and Rs. 3000 on transport and sold it with 25% profit. At what price did he sell ...
Ajay buys an old desktop for Rs. 6200 and spends Rs. 400 on its repairs. If he sells the desktop for Rs. 7000, his gain percent is
A man sells an article at a certain price incurring 20% loss. If he had sold the same article for Rs. 20 more he would have earned 20% profit. What was ...
The total cost price of 12 articles is the same as the total selling price of 7 articles. Calculate the percentage profit made on the sale of each arti...
Cost price of a bag is Rs.820. The shopkeeper marked it 60% above the cost price and sold it after giving a discount of 25%. If the shopkeeper had sold ...
A retailer offered two consecutive discounts of 20% and 15% on an item marked at Rs. 775. Given that the ratio of the cost price to the selling price of...
A shopkeeper marked an article P% above its cost price and sold it for Rs. 1150 after giving a discount of 20%. If the shopkeeper had a loss of 8% on th...
By selling an article for 2640, a person loses 15% of its selling price. At what price (in RS) should he sell it to gain 15% on its cost price?
