Quantitative Aptitude - Arithmetic Ability Questions

What is the unit place digit in the expansion of  773?

In the given figure, in a right angle triangle ABC, AB = 12 cm and AC = 15 cm. A square is inscribed in the triangle. One of the vertices of square coincides with the vertex of triangle. What is the maximum possible area (in cm.sq) of the square?

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

If a2+b2+c2=83and a+b+c=15 then the value of ab+bc+ca is

The marked price of a shirt is Rs 1280. If the shirt is being sold for Rs 900, then what is the discount percentage?

An object travels 23 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

The average marks of 56 students is shown as 60. It includes a wrong entry of 92 marks instead of 29 marks. The correct average is _____ .

What is the value of 36+729381+643