Quantitative Aptitude - Arithmetic Ability Questions

PQR is a right angled triangle in which PQ = QR. If the hypotenuse of the triangle is 20 cm, then what is the area (in cm2) of the triangle PQR?

The area of an equilateral triangle is 9√3 sq cm, find height of the triangle?

The diagonal of a square equals the side of an equilateral triangle. If the area of the square is 6√3 sq cm, what is the area of the equilateral triangle?

∆XYZ is right angled at Y. If tanX = 24/7, then what is the value of cotZ ?

The number whose square is equal to the difference of the squares of 37 and 23 is:-

Rohan borrowed a certain sum of money at simple interest. Rate of interest was 3% per annum for first 3 years, 4% per annum for next 5 years and 6% per annum for next 7 years. If he paid Rs 2059 as interest, then what is the sum borrowed (in Rs)?

A and B can do a piece of work in 24 and 30 daysrespectively. Both started the work and worked for 6 days.Then B leaves the work and C joins and the remaining workis completed by A and C together in 11 days. Find the days in which C alone can do the work

A missile travels at 1116 km/h. How many metres does it travel in one second?