Quantitative Aptitude - Arithmetic Ability Questions

The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by

5 bottles cost as much as 2 bags. The cost of 15 bottles and 4 bags is Rs 2,000. What is the price (in Rs.) of a single bag?

cot3A is equal to

The average age of 24 students is 12 years. It was observed that while calculating the average age, the age of a student was taken as 14 years instead of 8 years. What will be the correct average age (in years)?

If x -­ y = 7 and xy = 32, then value of (x2 + y2) is

If Sec θ = 5/3, then what is the value of Cosec θ?

Rs 11,550 has to be divided between X, Y & Z such that X gets 4/5 of what Y gets and Y gets 2/3 of what Z gets. How much more does Z get over X (in Rs)?

The value of cos220°+cos270° is