Simple and Compound Interest
Simple and Compound Interest
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P - Principal, the sum of money lent or borrowed.
R - Rate of interest: Annual interest, often expressed as a percentage.
T - Time period for which the money is lent or borrowed.
Simple Interest = Principal * Time * Rate of interest / 100
SI = P * T * R
For example, Principal is 4000, Rate of Interest is 8% and Time period is 4 years
SI = 4000× 8% × 4 = 4000× 0.08 × 4
= 1280.
In compound interest, the principal amount with interest after the first time period becomes the part of principal for the next time period.
CI = [P (1 + R/100)^T] – P
Total amount = [P (1 + R/100)^T]
If time period is half-yearly,
Amount = P[1 + (R/2)/100]^2T
If time period is quarterly,
Amount = P[1 + (R/4)/100]^4T
For example, Principal is 7500, Rate of Interest is 4% (compounded annually) and Time period is 2 years
Total Amount = [7500×(1+4/100)^2] = 8112.
CI = (8112 - 7500) = 612.
PSC Questions about Football are given below:.
2014 ലോകകപ്പ് വിജയി ? ജർമനി .
2022 ലെ ലോകകപ്പ് നടക്കുന്ന രാജ്യം ? ഖത്തർ.
88 വർഷത്തിനിടെ എത്ര രാജ്യങ്ങൾ ലോകകപ്പ് ചാമ്പ്യൻമാരായിട്ടുണ്ട് ? 8.
ആദ്യ ലോകകപ്പ് മത്സരത്തിൽ പങ്കെടുത്ത രാജ്യങ്ങൾ ? 13.
ആദ്യ ലോകകപ്പ് റണ്ണറപ്പ് ? അർജന്റീന.
ആദ്യ ലോകകപ്പ് വിജയി ? യുറഗ്വായ് ? 1930.
ആദ്യ ലോകകപ്പ് വേദി ? യുറഗ്വായ്.
ആദ്യ വനിത ലോകകപ്പ് നടന്ന വർഷം ? 1991.
ആധുനിക...
N = the number of terms .
S = the sum of the numbers in the set.
Average = S/N .
For example.
The marks of a student in five subjects are 96, 94, 92, 87, and 81, then what is the average score of the student?.
N = 5.
S = 96 + 94 + 92 + 87 + 81 = 450.
A = 450/5 = 90.
Another type questions .
1). There are 36 boys and 44 girls in a class. The average score of boys is 40 and girls are 35. Then what will be the average mark? .
Total mark of 36 boys = 36 x 40 = 1440.
Total mark of 44 girls = 35 x 44 = 1540.
Total mark of 80 Students = 1440 + 1540 = 2980 .
Average mark of the class = (2980 / 80).
...
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