Quantitative Aptitude - Arithmetic Ability Questions

The upstream speed of the boat is 40 kmph and the speed of the boat in still water is 55 kmph. What is the downstream speed of the boat?

PQ is a tangent to the circle at T. If TR = TS where R and S are points on the circle and ∠RST = 65°, the ∠PTS =

If θ be positive acute angle and 5cosθ + 12sinθ = 13, then the value of cosθ is

A contractor has got two orders A and B. On one (A) he spends Rs. 25,000 and makes a bill of Rs. 30,500. On the other (B) he makes a bill keeping a profit of 20%. Which of the two orders is more profitable to him?

The sum of the ages of husband and wife at present is 56. Ten years ago the product of their ages was 320. What is the age of the husband and the wife?

The average of 8 consecutive natural numbers is 38.5. What is the largest of these 8 numbers?

ΔPQR is right angled at Q. If cosP = 5/13, then what is the value of cosecR ?

A photographer allows a discount of 10% on the advertised price of a camera. The price (in Rs) that must be marked on the camera, which cost him Rs 600, to make a profit of 20% would be