Quantitative Aptitude - Arithmetic Ability Questions

A product was sold foe Rs. 4,500 at a profit of 12.5%. What was the amount of profit?

A sum fetched a total simple interest of Rs. 7728 at the rate of 7% per year in 8 years. What is the sum?

A sum of money becomes 77/50 of itself in 18/5 years when invested at simple interest. What is the rate (in percentage) of interest per annum?

If rsin∅ =1, rcos∅=√3, then the value of r2tan∅ is

If sec -7π/4 = x, then the value of x is

A 150 m long train, travelling at 54 km/h, crosses a platform in 42 seconds. What is the length of the platform?

Find the simple interest on Rs. 50 for 6 months at the rate of 10 paise per rupee per month.

A can make a cupboard in 10 days and B can do it in 50 days. Along with C, they did the job in 6.25 days only. Then in how many days C alone can do the job?