A and B can complete a work in 12 days and 15 days respectively. If they work together for 4 days and then B leaves, in how many days can A complete the...
A bag contains red, blue, and green balls in the ratio of 2:4:5. If two balls are randomly selected from the bag, the probability that both are blue is ...
A train travels at 72 km/h and crosses a platform of length 150 meters in 30 seconds. Find the length of the train.
A container has 80 liters of pure milk. 20 liters of milk is removed and replaced with 20 liters of water. Then, 20 liters of the new mixture is removed...
The combined current ages of Ram and Shyam add up to 56 years. Four years from now, the age ratio of Ram to Shyam will be 3:5. Determine the age differe...
A fruit seller sells apples at a profit of 20% and oranges at a loss of 10%. If the ratio of apples to oranges sold is 3:2 and the overall profit is rup...
If f(g(x))= x, where f and g are inverses of each other and f’(x) = 1/(1+x ² ), then g’(x) equals:
Four years ago, the ratio of Ratnesh's age to Shivam's age was 7:5. After 'x' years, the average age of Jivan, Ratnesh, and Shivam will be (x + 22). Jiv...
The simple interest on a sum of money for 3 years is 1,200 at a rate of 10% per annum. What is the compound interest on the same sum for the same time a...
The value of 4 sin2 30˚ - tan2 60˚ + sec2 45˚ is equal to -
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