Quantitative Aptitude - Arithmetic Ability Questions

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

If 9x+2 = 240 + 9x, the value of (8x)x is

If  P2+1P2 = 47, then the value of P + 1P is

The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to

In a triangle, the distance of the centroid from the three vertices is 4cm, 6cm and 8cm respectively. Then the length of the smallest median is:

O is the circumcentre of ΔABC. If AO = 8 cm, then the length of BO is

Select the odd word from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.