Quantitative Aptitude - Arithmetic Ability Questions

39 is 5.2% of?

Ravindra walks at 6 km/hr and Riya cycles at 11 km/hr towards each other. What was the distance between them when they started if they meet after 42 minutes?

P bought an article for Rs. 1600 and sold it at a profit of 10%. What would have been the increase in the profit percent if it was sold for Rs. 1840?

On a certain Principal if the Simple interest for two years is Rs 4800 and Compound interest for the two years is Rs 5088, what is the rate of Interest?

In a mixture, unbroken and broken rice grains are in the ratio 3 : 2. How much fraction of the mixture must be drawn off and substituted with broken grains, so that the ratio of unbroken and broken grains becomes 1 : 1?

In an ornament the ratio of gold and copper is 3:2. The percentage of gold in the ornament is:

If P = 7 + 4√3 and PQ = 1, then what is the value of (1/P2) + (1/Q2)?

If P = 7 + 4√3 and PQ = 1, then what is the value of 1/P2 + 1/Q2?