An article is sold at a profit of 25 %. If the selling price is doubled, the profit % will be: 

The value of x in the given equation
$$ {23 ^2 + \sqrt{x}=625}$$

The ratio of the sides of a triangle is $$ {1\over2}$$: $$ {1\over3}$$: $$ {1\over4}$$ and its perimeter is 104 cm. is. What is the length of the longest arm?

If $$ {x+{1\over x}=\sqrt{3}}$$ then $$ {x^{48}+x^{378\over7}+x^{726\over11}+x^{60}}$$ is equal to

Study the following table carefully and answer the questions given below.

In which discipline was there a continuous increase in number of students over the given years?

Find the total number of Prime Factors of 720 ? 

Directions: The bar graph shows the results of an annual examination in a secondary school in a certain year. Answer the following four questions based on this chart.

The average number of boys passed per class is 

In ∆ABC, AC = BC and ∠BAC = 40°. If BC is extended to D such that BC = CD, find out ∠ADC = ?