Quantitative Aptitude - Arithmetic Ability Questions

The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?

When Gopal walks from A to B and returns from B to A on cycle, then it takes him 46 minutes. By walking both ways, it takes him 75 minutes. If he rides cycle both ways then what will be the total time (in minutes)?

Working together P, Q and R reap a field in 6 days. If P can do it alone in 10 days and Q in 24 days, in how many days will R alone be able to reap the field?

The ratio of the cost price and selling price of an article is 5 : 3. What is the loss percentage?

The value of cos220° + cos270°is

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

In the given figure, P  is the center of the circle. If QS = PR, then what is the ratio of angles RSP to the TPR ?