Quantitative Aptitude - Arithmetic Ability Questions

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

Calculate the ratio of the area of two similar triangles if the sides of the triangles are in the ratio of 9:4.

If 3P/7 = 4Q/11, then what is the ratio of P and Q respectively?

What is the measure of an interior angle of a regular dodecagon?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:3 and area of ΔABC is 100 sq cm, what is the area (in sq cm) of quadrilateral BDEC?

If [4(2x/5 - 3/2)]/3 + 7/5 = 37/5, then what is the value of x?

If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?