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5² - 1 = 24; 5³ + 1 = 126 7² - 1 = 48; 7³ + 1 = 344
The average of 16 numbers is 82. The average of the first 8 numbers is 90, while the average of the last 9 numbers is 75. If the 8th number is removed, ...
A man sells a car to his friend at a loss of 10%. If his friend sells the same car for ₹ 54,000 and gets 20% profit on it. What is the actual price of...
Ankit can complete a task in 16 days, while Bina alone can complete the same task in 24 days. Ankit starts the work alone and continues for 6 days. Then...
Amit purchased an article and marked it 60% above the cost price and sold it after giving a discount of 15% for Rs. 1530. What will be the selling price...
The ratio of the radii of the bases of a cylinder and a cone is 2:3, while the ratio of their heights is 3:5. What is the ratio of the volume of the cyl...
The speed ratio of A to B is 4:3. C covers 840 km in 14 hours. If B's speed is 20% lower than C's speed, how much time will A need to cover 512 km?
A sum of money grows to Rs. 7,500 in 5 years and Rs. 8,250 in 7 years under simple interest. What is the original principal amount?
The difference between the interior and exterior angles of a vertex of a regular polygon is 140°. The number of sides of the polygon is
8 years ago, the ages of ‘Amit’ and ‘Bharat’ were in the ratio 4:5, respectively. If 6 years hence from now, the ages of ‘...
