Quantitative Aptitude - Arithmetic Ability Questions

In an alloy, aluminium and tin are in the ratio of 4 : 5. In the second alloy, the ratio of same elements is 4 : 7. If equal quantities of these two alloys be mixed to form a new alloy, then what will be the ratio of both of these elements in the new alloy?

The greatest perfect square number of 6 digits is

a, b and c are 3 values, such that a + b = 5, b + c = 7.5 and c + a = 8.5. What will be the average of these values?

A person bought an item for Rs. 1500 and sold it at a profit of 12%. What was the selling price of the item?

In ΔABC, ∠BAC = 90° and AD is drawn perpendicular to BC. If BD = 7 cm and CD = 28 cm, then what is the length (in cm) of AD?

If Cot θ = 24/7, then Sin θ = ?

If the circumference of a circle is 44 cm, then what must be its area (in cm²)?

In the following question, select the odd word from the given alternatives.