Quantitative Aptitude - Arithmetic Ability Questions

The sum of ages of Ram and his son is 48. If his uncle's age is also included the average becomes 40. What is the age of Ram's uncle?

If 2A = 3B = 8C; What is A : B : C?

Ramesh marks his article at Rs 6000 and after allowing a discount of 20%, he still earns 60% profit. What is the cost price (in Rs) of the article?

A number is increased by 84, it becomes 107% of itself. What is the number?

∆XYZ is right angled at Y. If CosecX = 17/15, then what is the value of CotZ?

If secA - tanA = x, then the value of x is

One tap can fill a water tank in 50 mins and another tap can make the filled tank empty in 75 mins. If both the taps are open together, already half filled tank would be full in

Painter 'A' can paint a house in 10 days and 'B' can do it in 20 days. With help of 'C', they did the job in 5 days only. Then, 'C' alone can do the job in: