Important Boundary lines Important Boundary lines

Important Boundary linesImportant Boundary lines

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17th ParallelNorth Vietnam and South Vietnam
24th ParallelThe border, which Pakistan claims for demarcation between India and Pakistan.
26th ParallelA circle of latitude which crosses through Africa, Australia and South America.
38th ParallelThe parallel of latitude which separates North Korea and South Korea.
49th ParallelUSA and Canada.
Durand LinePakistan and Afghanistan
Hindenburg LineGermany and Poland
Macmahon LineIndia and China
Marginal LineRussia and Finland
Mason-Dixon LineDemarcation between four states in the United State.
Medicine LineCanada and United States.
Order-Neisse LinePoland and Germany
Radcliffe LineIndia and Pakistan.

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Profit and Loss Formulas


Profit and loss is the one of major question section in Competitive exams. These formulas will be helpful for your upcoming Exams like PSC, SSC, IBPS and Other Competitive Exams. .

Cost Price(CP) : The Price at which a particular item purchased, is called its Cost Price.
Selling Price (SP): The price at which a particular item is sold, called its Selling Price.
Profit: If Selling Price of an item is more than Cost Price , then vendor is said to have a Profit.
Loss: if Selling Price of an item is less than Cost Price, the vendor said to have a Loss.

Formulas Profit = SP – CP.
Profit % = Profit/(CP)×100.
SP = ((100+Profit% )/100)×CP.
CP = (100/(100+Profit%))×SP.

Loss = CP – SP.
Loss% = Loss/(CP)×100.
SP = ((100-loss%)/100)×CP.
CP = (100/(100-loss%))×SP.



ചോദ്യ നമ്പർ തന്നേയാണ് ഉത്തരങ്ങൾ


1. എത്ര മലയാളികൾ ഇന്ത്യയുടെ രാഷ്ട്രപതിയായിട്ടുണ്ട്? .

2. കേരളം എത്ര സംസ്ഥാനങ്ങളുമായി അതിർത്തി പങ്കിടുന്നുണ്ട്?.

3. എത്ര ട്ടീസ്പൂൺ കൂടുന്നതാണ് ഒരുടേബ്ൾ സ്പൂൺ?.

4. വേദഗ്രന്ഥങ്ങൾ എത്രയാണുളളത്?.

5. ഗാന്ധിജി എത്ര പ്രാവശ്യം കേരളം സന്ദർശിച്ചിട്ടുണ്ട്?.

6. ഇന്ത്യയേക്കാൾ വിസ്തീർണ്ണം കൂടിയ രാജ്യങ്ങൾ എത്ര?.

7. ജലത്തിൻറെ പി.എച്ച്.മൂല്യം എത്ര?.


Simple and Compound Interest


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, .