Quantitative Aptitude - Arithmetic Ability Questions

Triangle PQR is inscribed in the circle whose radius is 14 cm. If PQ is the diameter of the circle and PR = 10 cm, then what is the area of the triangle PQR?

In a class test, a student scored 22 marks out of 25 marks. The students marks in % is :

Jalal, Amit and Feroz enter into partnership. Jalal invests 4 times as much as Amit and Amit invests three-fourth of what Feroz invests. At the end of the financial year, the total profit earned is Rs. 19,000. Find the share for Jalal.

If x+1x:x-1x=5:3 then the value of x is

A trader buys 800 kgs of tomatoes for Rs 7200. 10% tomatoes are damaged in transportaion. At what rate (Rs/Kg) should he sell the rest to earn 30% profit?

What is the value of (1/√2) Cot 45° + (1/√3) Cosec 60°?

What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

A person borrows some money for 4 years at the rate of simple interest. If the ratio of principal and total interest is 5 : 1, then what is the rate ( in percentage) of interest?