Pipe X requires 12 hours to fill 2/3 of a tank, whereas pipe Y can empty the entire tank in 24 hours. If both pipes are opened si...
If a man rides a bicycle at a speed of 50 km/h for 2 hours and at a speed of 40 km/h for the next 4 hours then what will be the average speed?
An LPP has constraints:
x + y ≤ 4
x + y ≥ 6
x, y ≥ 0
What can be said about the feasible region?
In a class of 55 students, the ratio of boys to girls is 5:6. The average weight of a boy exceeds the average weight of a girl by 8 kg. Additionally, th...
Evaluate: 1 + tan²(cos⁻¹x)
X has 30% more money than Y, and Z has 35% less money than Y. What percent more money does X have than Z?
A closed cylindrical tank has a radius of 7 m and a height of 15 m. Calculate the total surface area of the tank (use π = 22/7).
A shopkeeper marks an article 50% above the cost price and then gives two successive discounts of 20% and 10%. What is his overall profit or loss percen...
In a class, the ratio of boys to girls is 5:3. If 4 boys and 2 girls leave the class, the ratio of boys to girls becomes 3:2. How many students were the...
159, 303, 499, 755, 1079, ?
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