Quantitative Aptitude - Arithmetic Ability Questions

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given options.

If 7x - (3/2) * (4x - 9) = 6.5, then the value of x is?

Rehman walks at 8 km/hr and Roma cycles at 13 km/hr towards each other. What was the distance between them when they started if they meet after 36 minutes?

∆XYZ is right angled at Y. If tanX = 24/7, then what is the value of cotZ ?

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

If the product of two numbers is 4941 and their LCM is 81, then their HCF is :

The LCM of two numbers is 66. The numbers are in the ratio 2:3. The sum of the numbers is

Simplify the equation 0.733+0.2730.732+0.272-0.73×0.27