Quantitative Aptitude - Arithmetic Ability Questions

What is the value of (-7776)25

The value of 2 Tan53°Cot37°-Cot80°Tan10° ?

In what ratio sugar of Rs 38 per kg and Rs 30 per kg be mixed with each other so that on selling mixture at Rs 35.2 per kg there will be a profit of 10%?

Rs. 750 invested for 3 months gave an interest of Rs. 18. What was the simple rate of interest per annum?

A person invested a total sum of Rs 7900 in three different schemes of simple interest at 3%, 5% and 8% per annum. At the end of one year he got same interest in all three schemes. What is the money (in Rs) invested at 3%?

A box weighs 8.5 kg when full of sand and weighs 5.5 kg when it is half filled with sand . Weight of the empty box is

What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?

In the given figure, PQRS is a quadrilateral. If QR = 18 cmand PS = 9 cm,then what is the area (in sq. cm) of quadrilateral PQRS?