Quantitative Aptitude - Arithmetic Ability Questions

If the numbers  93, 204, 256 are arranged in ascending order, then the right arrangement is 

A man is 3 years older than his wife and four times as old as his son. If the son becomes 15 years old after 3 years. Then what is the present age of the wife?

In a committee there are 25 members. If two members whose ages are 64 years and 40 years are replaced by the two new members, then average age of 25 members is decreased by 2 years. What is the average age (in years) of the new members?

Points P , Q and R are on a circle such that ∠PQR = 40° and ∠QRP = 60° . Then the subtended angle by arc QR at the centre is

A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?

In ∆DEF measure of angle E is 90°. If secD = 25/7, and DE = 1.4cm, then what is the length (in cm) of side DF?

What is the measure (in degree) of an exterior angle of a regular polygon of 9 sides?

What is the simplified value of sec4θ – sec2θ tan2θ?