TIME AND WORK Concept:Work is the quantity of energy transferred from one system to another. Work is defined as the amount of job assigned or the amount of job actually done. Problem on work are based on the application of concept of ratio of time and speed. Work is always considered as a whole or… Read More »
Today’s topic is SIMPLE INTEREST & COMPOUND INTEREST IMPORTANT FACTS AND FORMULAS 1. Principal: The money borrowed or lent out for a certain period is called theprincipal or the sum.2. Interest: Extra money paid for using other’s money is called interest.3. Simple Interest (S.I.) : If the interest on a sum borrowed for a certain… Read More »
Fast Math and Shortcut Rules for Subtraction- Rule-I:Useful Shortcut rules for Subtraction which was more helpful in the fast math to solve the aptitude questions were given below. Candidates those who are preparing for the SSC and all competitive exams can use this. Rule-I: Borrowing and Paying Back Method:This method is the quickest method of… Read More »
Hi Readers.Here we are providing a list of all important mathematics formulas which may help you to clear your SSC, Banking and other competitive exams. 1. (α+в)²= α²+2αв+в²2. (α+в)²= (α-в)²+4αв b3. (α-в)²= α²-2αв+в²4. (α-в)²= f(α+в)²-4αв5. α² + в²= (α+в)² – 2αв.6. α² + в²= (α-в)² + 2αв.7. α²-в² =(α + в)(α – в)8. 2(α² +… Read More »
Shortcut to find Multiplication of Three and Two digit numbers295 x 19 = ?The result of multiplication of three and two digit number is 295×19 = 5605.Step 1: Multiply 5×9 = 45 (note down 5 and carry 4).Step 2: Then do cross multiplication and add carry (9×9 + 5×1 + 4) = 90 (note down… Read More »
Important Formulas : Work From Days:⇒ If A can do a piece of work in n days, work done by A in 1 day = 1⁄n Days From Work:⇒ If A does 1⁄n work in a day, A can finish the work in n daysNo. of days = total work / work done in 1… Read More »