For the following questions answer them individually
Two pieces of can full a tank in 10h and 16 h respectively. A third pipe can empty the tank in 32 h. If all the three pipes function simultaneously, then in how much time the tank will be full?? (in h)
A merchant bought some goods worth Rs. 6000 and sold half of them at 12% profit. At what profit per cent should he sell the remaining goods to make and overall profit of 18%?
A and B are two numbers. 6 times of square of B is 540 more than the square of A. If the respective ratio between A and B is 3:2, what is the value of B?
The perimeter of a rectangle whose length is 6 m more than its breadth is 84 m. What would be the area of a triangle whose base is equal to the diagonal of the rectangle and whose height is equal to the length of the rectangle?
56 workers can finish a piece of work in 14 days. If the work is to be completed in 8 days, then how many extra workers are required?
A 210 m long train takes 6 s to cross a man running at 9 km/h in a direction opposite to that of the train. What is the speed of the train? (in km/h)
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