Three solid metallic sphere whose radii are 3cm, x cm and 18cm respectively, are melted and recast into a single solid sphere of diameter 38cm. Then find the total surface area of the sphere with radius x cm?

Find the greatest number which divides 108, 124 and 156, leaving the same remainder. 

Directions: Find the wrong number in the following number series:

2, 6, 10, 19, 36, 69, 134

Find the cube root of $$ ^{3}\sqrt{-13824}$$.

The line graph shows the number of vacancies of accountants in a certain company. Study the diagram and answer the following questions.

In which year maximum vacancies produced?

Solve: 12–[26–{2+5×(6–3)}]

Directions: Study the following data and answer the questions. 

The score of students of a class are given as follows :

Number of students whose IQ score is 140 is

In a school, if there are 36% boys and 352 girls, then the number of boys is ________.