Population of a town increases by 12% every year. If the population of town will be 188160 after 2 years, then what is its present population?

The following line graph gives the percentage of the number of candidates who qualified an examination out of the total number of candidates who appeared for the examination over a period of seven years from 1994 to 2000.

If the number of candidates qualified in 1998 was 21200, what was the number of candidates appeared in 1998?

In the given figure , DE‖BC and AD:DB=5:3, then what is the value of DE|BC?

Find the minimum value of x which the expression  
x³-7x²+11x - 5 ≥ 0.

If efficiency of B increased by $$ {33{1\over 3}{\%}}$$ and A and B start work together, while at the same time C starts destroying the work. Find in how many days work will be completed?

The distance between two cities A and B is 330 km. A train starts from A at 8 a.m. and travels towards Bat 60 km / hr. Another train starts from Bat 9 a.m. and travels towards A at 75 km/hr. At what time do they meet?

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The  observation is

The average of 10 numbers is calculated as 15. It is discovered later on that while calculating the average one number, namely 36, was wrongly read as 26. The correct average is: