Showing posts with label math. Show all posts
Showing posts with label math. Show all posts

## aptitude 1

1) A and B are among 6 participants in a bike race. If no two participants finish the race at the same time and A must finish the race be...Read More

## Shortcuts and Tricks in Averages – Quant without pen

Question 1: The average age of the district level hockey team of eleven is 22 years.The average age gets increased by 1 year when the coa...Read More

## Ratio and proportion shortcuts

Hint 1: a/b is the ratio of a to b . That is a:b Hint 2: When two ratios are equal, they are said to be in proportion. Example...Read More

## Important Formulas of Number System

Formulas of Number Series 1 + 2 + 3 + 4 + 5 + … + n = n(n + 1)/2 (1 2  + 2 2  + 3 2  + ..... + n 2 ) = n ( n + 1 ) (2n + 1) / 6 (1 3...Read More

## Compound Interest Rule of 72, Rule of 114 and Rule of 144

The rule of 72 is a shortcut technique to estimate the number of years it will take for your money to double with compounding interest. Fo...Read More

## Some basic terms related to probability

Probability A word which can also be used in the place of ‘Probability’ is ‘Chance’. We all are well aware of the word ‘chance’. We use ...Read More