Quantitative Aptitude - Arithmetic Ability Questions

A shopkeeper purchased some eggs at rs. 19.20 per dozen and sold them at a profit of 25%. What is the selling price per egg?

The average age of eight teachers in a school is 40 years. A teacher among them died at the age of 55 years whereas another teacher whose age was 39 years joins them. The average age of the teachers in the school now is (in years)

A 800 metres long train is running at the speed of 90 km/hr. If it crosses a bridge in 50 seconds, then what is the length (in metres) of the bridge?

An amount fetched a total simple interest of Rs. 3200 at the rate of 6.25 %/yr in 4 years. What is the amount (in Rs)?

There are total 200 students in a school, of which 1/5th are boys. Find the number of girls in the school.

What is the value of sin (B – C) cos (A – D) + sin (A – B) cos (C – D) + sin (C – A) cos (B – D)?

If x2 – 16x – 59 = 0, then what is the value of (x – 6)2 + [1/(x – 6)2]?