Quantitative Aptitude - Arithmetic Ability Questions

The value of the expression 2(sin6θ+cos6θ) - 3(sin4θ+cos4θ) + 1 is

A telephone bill costs Rs.13 for 19 minutes. What is the cost in rupees for 15 minutes 50 seconds?(rounded to one decimal)

If 7/8th of 5/4th of a number is 315, then 5/9th of that number is _____

When a number is increased by 42, it becomes 121% of itself. What is the number?

What is the value of sec -2π/3 ?

The distance between the points (4, 8) and (k,-4) is 13. What is the value of k?

The point equidistant from the vertices of a triangle is called its

The average temperature for Monday, Tuesday, Wednesday and Thursday was 48° . The average temperature for Tuesday, Wednesday, Thursday and Friday was 52°, If the temperature on Monday was 42°, then the temperature on Friday was (in degrees)