Quantitative Aptitude - Arithmetic Ability Questions

Area of 4 walls of a cuboid is 448 sq cm, its length is 18 cm and height is 8 cm. What is its breadth (in cm)?

The angle of elevation of the top of a tower, vertically erected in the middle of a paddy field, from two points on a horizontal line through the foot of the tower are given to be α and β (α>β). The height of the tower is h unit. A possible distance (in the same unit) between the points is

If x2+1x2 = 98, then x3+1x3 = ?

P and Q can do a project in 12 and 12 days respectively. In how many days can they complete 50% of the project if they work together?

What is the value of 513-144 - 81 - 64 ?

A man was 32 years of age when he had his first son. His wife was 35 years of age when his son attained the age of 7 years. The difference between the age of the father and the mother is _____

Sum of three consecutive integers is 51 . The middle one is:

A fraction is greater than its reciprocal by 9/20. What is the fraction?