In the diagram, O is the center of the circle QRS and ∠SQR = 28°. Find ∠ORS.

Solve  \(1 + \sqrt[3]{ x - 3} = 4\)

The angle of a sector of a circle of radius 3.4 cm is 115°. Find the area of the sector.

\((Take \pi = \frac{22}{7})\)

There are 30 students in a class. 15 study woodwork and 13 study metal work. 6 study neither of the 2 subjects. How many student study woodwork but not metal work?

Mr Manu is 4 times as old as his son, Adu. 7 years ago the sum of their ages was 76. How old is Adu?