Quantitative Aptitude - Arithmetic Ability Questions

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

Which of the following is not a quadratic equation?

Out of two numbers, 65% of the smaller number is equal to 45% of the larger number. If the sum of the numbers is 2574, then what is the value of larger number?.

If XY = a+23 and YX = 13, then find the value of X2 + Y2X2 - Y2.

If the areas of two similar triangle are in the ratio 5 : 7, then what is the ratio of the corresponding sides of these two triangles?

Select the odd word from the given alternatives.

Two students appeared for an examination. One of them secured 22 marks more than the other and his marks were 55% of the sum of their marks. The marks obtained by them are _______.

When 2x + 2x = 3, then x3 + 1x + 2 value is