Quantitative Aptitude - Arithmetic Ability Questions

The sum of two angles of a triangle is 116o and their difference is 24o . The measure of smallest angle of the triangle is

A boat is sailing towards a lighthouse of height 20√3 m at a certain speed. The angle of elevation of the top of the lighthouse changes from 30° to 60° in 10 seconds. What is the time taken (in seconds) by the boat to reach the lighthouse from its initial position?

If y=2-x1+x, then what is the value of 1y+1 + 2y+1y2-1 ?

A shopkeeper increases the price of an object by 40% and then sells it at 25% discount on the marked price. If the selling price of such an object be Rs. 2100, its cost price for the shopkeeper was ?

The ratio of present ages of Rambha and Sarvesh is 8:5. After 7 years the ratio of their ages will be 5:4. What is Rambha's present age?

If sin(A/2) = x, then the value of x is

The equation of a line is given by 4y-6x+9=0. Find the slope of other line which is perpendicular to it.

If the roots of the equation a(b – c)x2 + b(c – a)x + c(a – b) = 0 are equal, then which of the following is true?