Quantitative Aptitude - Arithmetic Ability Questions

 In ΔDEF measure of angle E is 90 deg. If tanD = 4/3, and DE = 6cm, then what is the length (in cm) of side EF?

10 people could complete a task in 8 days. After 4 days, 2 of the workers left. How many days from then did it take to complete the task?

The HCF of 20, 28 and 48 is

The HCF of 36,54 and 108 is

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the tower was 45 m high, how far away from the tower was the platform positioned?

Solve the following 7 x {4 + (-2) x (-3)} = ?

Each exterior angle of a regular polygon measures 9 deg. How many sides does the polygon have?

If percentage of profit made,when an article is sold for Rs.78, is twice as when it is sold for Rs.69, the cost price of the article is