Quantitative Aptitude - Arithmetic Ability Questions

If a + b = 4 and ab = -5, then what is the value of a3 + b3?

Which of the following conditions is TRUE for the two line segments AB and CD to be congruent?

The curved surface area and the diameter of a right circular cylinder are 660 sq.cm and 21 cm respectively. Find its height (in cm).

A boat goes 8 km upstream and 12 km downstream in 7hours. It goes 9 km upstream and 18 km downstream in 9 hours. What is the speed (in km/h) of the boat in still water?

If √(1 + cot2A)/cotA = x, then the value of x is

ΔABC is similar to ΔPQR. Length of AB is 36 cm and length of the corresponding side PQ is 16 cm. If area of ΔABC is 1296 sq cm, what is the area of ΔPQR?

Choose the word is least like the other words in the group

Select the odd letters from the given alternatives.