Quantitative Aptitude - Arithmetic Ability Questions

Which one is the largest among the fractions (5/113), (7/120), (13/145) and (17/160)?

If the length of the side of an equilateral triangle is 6 cm, what is its area?

ax + 3y = 6 has slope -2/3. What is the value of a?

If u+v = 10 and uv = 16, then find the value of u2-v2uv

What will be the net discount (in percentage) for two successive discounts of 30% and 20%?

From an external point two tangents to a circle are drawn. The chord passing through the points of contact subtends an angle72° at the centre. The angle between the tangents is?

A train crossed a 140 m long platform in 15 seconds and a 180 m long platform in 17 seconds. The speed of the train was

In a class of 55 students there are 34 girls. The average weight of these girls is 51 Kg and average weight of the full class is 55.2 kgs. What is the average weight of the boys of the class?