Question
Solution
Let f(x) = (3x–4)/(2x+1). Solve f(f(x)) = x.
Find the area enclosed between the curve y = √(25 – x²) and the x-axis in the first quadrant.
"M' sold a watch to 'N' making a profit of 20%. 'N' then sold it to 'X' at a 10% loss. If 'M' had directly sold the watch to 'X' ...
The average of 15 numbers is 32. If 2 is added to each number, then the new average will be:
In a survey of 200 people: 112 like coffee (C), 125 like tea (T), 90 like juice (J). 60 like both C and T, 55 like T and J, 52 like C and J. If 30 like ...
The curved surface area of a right circular cylinder with a radius of 7 cm is 440 cm². If the height of the cylinder is increase...
A car typically travels 20% faster than a bike. The bike takes 4 hours to cover 300 km. If the car's speed were 8 km/h less than ...
The speed of train X is 25% more than the speed of train Y. The time taken by train X to cover P km is z hours, and train Y covers the same distance in ...
A man is running at a speed of 20 m/s in the same direction as a train. The train passes the man completely in 9 seconds. If the train's speed is 144 km...
Quantity I: The marked price of a radio is 25% higher than its cost price, and the shopkeeper offers a 15% discount on the marked price. The cost price...
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