A person bought an item for Rs. 1500 and sold it at a profit of 12%. What was the selling price of the item?
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Pipes A and B, when working together, can fill an empty tank in 8 hours. If B is stopped after 2 hours, it will take a total of 11 hrs to fill the tank. How long would it take A to fill the empty tank alone?
Select the word with the correct spelling.
Simplify 81x2 - 49y29x + 7y
Expand : S + 23
The speed of car B is half the speed of car A. If car A covers a distance of 120 km in 1.5 hours, what is the speed of car B?
Evaporation of water from leaves of a plant is called
Who designed the first electronic computer - ENIAC?