Class 8th Comparing Quantities

Comparing Quantities- Maths Formulas Class 8

Here i am providing Class 8th consolidates all important formulas that required in class 8th. these formula sheet will help students to solve questions easily and more in efficient way. you can also check our Video tutorial based on class-8th Short Notes.

• Profit:- If S.P > C.P, we make some money from selling the item. This is called Profit.                
• Profit = SP – CP
• Profit % = (P/CP) X 100
• Loss:- If S.P < C.P, we lose some money from selling the item. This is called Loss
• Loss = C.P – S.P
• Loss % = (L /CP) X 100
  
  
• SP = CP( 1+ P%) , where SP = selling price , CP= cost price , P = Profit
• SP = CP( 1- L%) , where SP = selling price , CP= cost price , L = loss
• Simple Interest:-

     where P = Principal , R= Rate , T = Time

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• Amount When Interest is Compound annually

        where P = Principal , R= Rate , T= Time

• Amount When Interest is Compound half-yearly

            R_new= R/2,      T_new= 2 x T

• When Interest is Compound quarterly

            R_new=R/4 ,      T_new= 4 x T

• Total amount at the end of time period A= P + I , where I is compound interest or simple interest

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