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 of 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 alternatives.

Find the odd pair out.

A number is greater than twice its reciprocal by 31/4. Find the number.

Find the least number that must be subtracted from 98534, to get a number exactly divisible by 824.

In a rectangle

The cash difference between the selling price of an article at a profit of 2% and 12% is Rs.3. The ratio of two selling prices is

The average age of a batch of 19 members is 24 years. If the age of the faculty be included, then the average increases by 4 months. What is the age of the faculty?

Which of the following condition is True about the similarity of triangle ABC & DEF given below?