Compound Interest (C.I) : Mathematics Question and formula

Compound Interest :: Mathematics topic :: Compound Interest Question for SBI PO, SSC CGL, IBPS.

Compound Interest Formula - CI Formula:-

Let Principle = P, Rate = R% per annum and Time = N years. then,

• When interest is compounded Annually, Amount = P (1 + R/100)^N
• When interest is compounded Half-yearly, Amount = P (1 + R/2/100)^2N
• When interest is compounded Quaterly, Amount = P (1 + R/4/100)^4N

Find Percentage : Using Short Tricks | 5 % and 15 %

Find 5 % and 15 % Using Short Tricks | Career Power Math Shortcuts for Bank PO/Clerk/SSC etc

>> Finding 5 % of a Number.

Use steps like this:-
1. Write the Number from question
2. Insert the decimal point one place to the left.

Math Short Tricks : Find The Square of Repeated Number | For Bank PO/Clerk

Find the square of a number containing repeated Numbers | Find The Square of Repeated Number | Short Ticks For Bank PO/Clerk | Mathematics Shortcuts | Math Short Tricks for Bank PO/Clerk Exam

1. Find the square of a number containing repeated 1

Steps involved:

Step-1: Count the digit, assume number of Digit=n

Step-2: Now write the number starting from 1 to till n

Step-3: and just decrease the number to till 1

Example 1: Find the Square of 111.

Solution: First we Count the digit, 1 is repeated 3 times so total number of digit is=3

Now we write the number from 1 to 3, means- 123

Now decrease the umber from 3 to 1, means - 21 (because 3 is already written)

so answer is = 12321

Example 2: Find the Square of 11111.

Solution: First we Count the digit, 1 is repeated 5 times so total number of digit is=5

Now we write the number from 1 to 5, means- 12345

Now decrease the umber from 5 to 1, means - 4321 (because 5 is already written)

so answer is = 123454321

2. Find the square of a number containing repeated 3

Steps involved:

Step-1: Count the digit, assume number of Digit=n

Step-2: then write (n-1)times 1 then 0

Step-3: again write (n-1)times 8 then 9

Example 1: Find the Square of 33333.

Find 40 Percent : Using Short Tricks

Finding 40 % of a Number.
Use steps like this:-
1. Choose a 2 digit Number
2. Multiply with 4. (means 4 se Guna karein.)
3. Insert Decimal point after one Place from the Right. (right side se ek sthan ke baad Dashamlav daalein.)

For Example:  Find 40 percent of 33 or  33 x 40% or  33 ka 40 percent kitna hoga?

Step 1:  Number is 33
Step 2:  33 x 4 =132
Step 3:  Insert Decimal Point after one place from Right Side: 13.2
Answer = 13.2

Finding Percentage using Career Power Short Tricks within very short time which will help you to attempt much more question in Competitive examination like Bank PO, Bank Clerk, SSC, Railways, LIC, RRBs etc.

Find 45 Percent : Using Short Tricks

Finding 45 % of a Number.
Use steps like this:-
1. Choose a two-digit number and Divide number by 2 (means Number ko 2 se Bhag Lagayein.)
2. then Multiply with 9. (means 9 se Guna karein.)
3. Insert Decimal point after one digit from the Right. (right side se ek sthan ke baad Dashamlav daalein.)

For Example:  Find 45 percent of 56 or  56 x 45% or  56 ka 45 percent kitna hoga?

Step 1:  56 divide by 2. means 56/2 = 28
Step 2:  28 x 9 =252
Step 3:  Insert Decimal Point after one place from Right Side: 25.2
Answer = 25.2

Finding Percentage using Career Power Short Tricks within very short time which will help you to attempt much more question in Competitive examination like Bank PO, Bank Clerk, SSC, Railways, LIC, RRBs etc.