Quantitative Aptitude - Arithmetic Ability Questions

What is the value of Cot 45° + Cosec 60°?

A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?

∆XYZ is right angled at Y. If tanX = 15/8, then what is the value of sinZ ?

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be

To get number 40, the number 56/9 should be multiplied with

­ A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?

30 men working 5 hours a day can do a task in 16 days. In how many days will 40 men working 6 hours a day do the same task?

If the difference between the roots of the equation Ax2 – Bx + C = 0 is 4, then which of the following is TRUE?