If $$ {3x+}{2\over {\sqrt{x}}}=1$$ then $$ {x-{\sqrt{x}}}=?$$

The shadow of a tower, when the angle of elevation of the sun is 60° is found to be 15 m shorter than when it is 45°. Then height of the tower is 

A student scored 32 percent and failed by 6 marks. If he had scored 36 percent marks, he would have passed by 2 marks. What is the passing mark?

What is compound interest accrued on an amount of Rs 45000 in 2 yr @ 9% per annum ? 

Gagan started a business and Michael joined him after 2 months. Gagan spent Rs.15000 while Michael spent Rs.27,000. Their one year profit came out to Rs.5000. How much profit will Gagan get?

A train 150 m. long is running with a speed of 68 km. /hr. In what time will it pass a man who is running at 8 km. /hr. in the same direction in which the train is going?

The product of the LCM and HCF of two numbers is 24. The difference of the two numbers is 2. Find the numbers? 

The difference of two numbers is 15 % of their sum. the ratio of the larger number to the smaller number is: