Quantitative Aptitude - Arithmetic Ability Questions

If r sinθ=3 and r cosθ=1, then the values of r and θ are: (0°⩽θ≤90°)

A boy spends Rs 20 to purchase toffees at Rs 1 each. Next day, he purchased some toffees for Rs 40 with a discount of 50 paise per toffee. What is the average price per toffee (in paise)?

The average weight of 30 students in a class is 25 kgs. If the weight of the class teacher is added, the average weight increase by 2 kgs. The weight of the class teacher in kgs is

A man engaged a servant on a condition that he would pay him Rs. 80 and a pair of jeans after service of one year. Servant served for only 9 months and receives a pair of jeans and an amount of Rs. 55. The price of the jeans is ________.

The simple and compound interest that can be earned in two years at the same rate is Rs 1,000 and Rs 1,040 respectively. What is the rate (percent per annum) of interest?

If x = x2+11 2 - 2, then x3 + 5x2 + 12x is

If Cot θ = 21/20, then what is the value of Cosec θ?

Reflection of the point (­1,4) in the x­axis is