Quantitative Aptitude - Arithmetic Ability Questions

39 is 5.2% of?

In ∆ABCif the median AD=1/2 BC, then ∠BAC is

P and Q can do a project in 12 and 12 days respectively. In how many days can they complete 50% of the project if they work together?

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?

Two numbers are in the ratio 2:5 and their HCF is 18. Their LCM is

A sells a watch to B and makes a loss of 12%. B makes a profit of 12.5% by selling the watch to C. If A sells the watch to B at the cost of which C purchased it, then the percentage of loss or profit of A will be,

A bus runs at 50 kmph. If the speed is increased by 10 kmph, it will cover 20 km more in the same time. Find the actual distance covered?

A school has 8 periods of 45 minutes each, every day. How long will each period be if the school has to have 9 periods everyday, assuming the working hours to be the same?