Quantitative Aptitude - Arithmetic Ability Questions

Which of the following is a reductible fraction?

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?

ΔDEF is right angled at E. If secD = 25/7, then what is the value of cosecF ?

At what point does the line 3x + 2y = -12 intercept the Y-axis?

A shopkeeper marks up his wares by 60% and offers 25% discount. What will be the selling price (in Rs) if the cost price is Rs 1600?

An article was sold for Rs. 2,400 at a discount of 20%. Find the selling price, if the discount was 25%.

What is the measure of an exterior angle of a regular polygon of 10 sides?

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is