Quantitative Aptitude - Arithmetic Ability Questions

A vendor buys 6 bananas for Rs 25 and sells them at 3 for Rs 20. What is his profit percentage?

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If lengths of PS, SQ and PR are 6 cm, 9 cm and 12.5 cm respectively, what is the length of TR?

The average marks of 45 students is shown as 65. It includes a wrong entry of 84 marks instead of 48 marks. The correct average is:

What is the reflection of the point (5, -2) in the line y = -1?

Let O be the orthocentre of the triangle ABC. If ∠BOC = 150°, Then ∠BAC is

The area of a square is 40.5 cm². Find the length of its diagonal (in cm).

If the parallel sides of a trapezium are 8 cm and 4 cm, M and N are the mid points of the diagonals of the trapezium, then length of MN is

The area of a rhombus having one side 10 cm and one diagonal 12 cm is