Following types of questions pretty common in competitive exams: How many numbers of five digits can be formed with the digits 1,2,3,4 and 5, without repetition? How many words can be formed using all of the letters from A [...]
DS Case: Simple Equation Rule#1 Remember to Forget Rule#2: Don’t calculate exact value DS Case: Square roots DS case: Partnership DS Case: Time and Work DS Case: Simple Equation C=a+b, what is the value of C? I. a=5 [...]
This is merely a subtype of Time n Work problems. and can be solved using our good ol' STD table Method. Case 1: Women finish entire job Case 2: Women to finish remaining job Case: Child labour Case 1: [...]
If you’ve mastered the STD table method for Time n Work my previous articles, then Average speed is a piece of cake. Absolutely No need to mugup any formula for average speed. Case 1: Distance covered in two phases [...]
Case 1: Two partners join @same time Step 1: Fill up the table Step 2: Find Ratio of Actual investment Step 3: Componendo on Total Profit Case 2: Two Partners join @Different Time Step 1: Fill up table Step [...]
Introduction Dataset #1 Step 1: Gender and Generation table Step 2: Checklist Questions based on the Family-Data Dataset #2: UPSC CSP’2000 Step #1: Gender and Generation table Step-2: Run the checklist Step-3: Solve the Question Do eliminate wrong options [...]
Introduction Circular arrangement Step 1: Draw the diagrams Step 2: Run the Checklist Step 3: Proceed with questions Introduction There are 4 types of ‘Logical-Arrangement’ questions Circular : Sitting In a Round Table Linear : Sitting in rectangular table [...]
Introduction Case: City’s population: Growth Case: City’s Population: Decline Case: Bank’s compound interest rate(CI) Case: CI →Finding Nemo Principal Case: Compounding Twice a Year Case: Compounding thrice a year Case: Wine Replacement (Adulteration) Approach 1: Alligiation loop Approach [...]
Case#1: Basics Case 2: Time same but Different distance covered in each case Case #3: unknown variables Previous Articles I hope you’ve mastered the STD table method from earlier articles on Time and Work / Pipes and Cistern. We [...]
Easy Wine and Water Mixing Problem Two Solutions: Selling Price of Wine and Profit Dilution by adding Water in the Wine Average Profit / Interest Rate: Jethalal's Mobile shop Average weight of Group : Gokuldham society's case Recommended Booklist [...]
Rule #1: Maintain a Diary of Mistakes Rule #2: Get your hands “DIRTY” Rule #3: Know when to give up the fight. The Mock-test “SERIES” for CSAT Previous Articles on Aptitude Rule #1: Maintain a Diary of Mistakes Consider [...]
When you form words using alphabets (or letters), the 'order' matters. Three alphabets T,A,C Now you form words: CAT is not same as ACT; both words have different meanings hence order matters. This is a permuation problem. Case 1: [...]
Introduction Case1 : Probability of Particular Actor getting selected Case 2: Probability of One lady getting selected Case 3: One man and one woman ("AND" case) Case 4: "Atleast" one man is selected ("OR" case) Alternative method: 1 Minus [...]