Quantitative Aptitude - Arithmetic Ability Questions

Of the three numbers, the average of the first number and the second number is 37 more than the average of second number and third number. What is the difference between the first and the third number?

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?

What is the value of 2sec2A?

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

If a + b = 1, then a4 + b4 - a3 - b3 - 2a2b2 + ab is equal to

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

If 9/4th of 7/2 of a number is 126, then 7/2th of that number is _____.

A cube is inscribed in a sphere. A right circular cylinder is within the cube touching all the vertical faces. A right circular once is inside the cylinder. Their heights are same and the diameter of the cone is equal to that of the cylinder.

What is the ratio of the volume of the cube to that of the cylinder ?