Quantitative Aptitude - Arithmetic Ability Questions

If a3+1a3 = 2, then the value of a2+1a?

The mean of the data 2, 9, 9, 3, 6, 9, 4 is

Select the odd letters from the given alternatives.

Find the odd word/letters/number from the given alternatives.

Find out the odd word/letters/number/number pair from the given alternatives.

In the following question, select the odd letter/letters from the given alternatives.

A scored 72% in a paper with a maximum marks of 900 and 80% in another paper with a maximum marks of 700. If the result is based on the combined percentage of two papers, the combined percentage is

The radius of two circles is 3 cm and 4 cm. The distance between the centres of the circles is 10 cm. What is the ratio of the length of direct common tangent to the length of the transverse common tangent?