Calculating the percentage profit on basis of amount earned:
Suppose a trader recovers cost of 25 clothes by selling 20 clothes then the percentage profit?
%profit = ( Goods left / Goods sold ) * 100 = ( 5 / 20 ) * 100 = 25%
Calculating %loss when two items are sold at same value of profit and loss respectively:
Suppose I sell two items, one at profit of 10% and other at loss of 10% then I shall always have a loss of [ x / 10 ]^{2} % = ( 10 / 10 )^{2} = 1% loss^{ }
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Practice Exercise:
Profit and Loss |
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here |
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If the price of a commodity increases by R%, then the reduction in consumption so as not to increase the expenditure is
New consumption = [R / ( 100 + R )) * 100] %
Practice Exercise:
Percentages |
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When A and B are partners and both invest in a ratio say x:y but at the same time then their ratio of profits sharing is same as their investment ratio i.e. x:y.
However if A invests 'x' amount for 'p' months and B invests 'y' amount for 'q' months then their share in profits is:
Practice Exercise:
Partnership Theory |
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(i) aᵐ ∙ aⁿ = aᵐ + ⁿ
(ii) aᵐ/aⁿ = aᵐ - ⁿ
(iii) (aᵐ)ⁿ = aᵐ * ⁿ
(v) a-ⁿ = 1/aⁿ
(vi) ⁿ√aᵐ = aᵐ/ⁿ
(vii) (ab)ᵐ = aᵐ ∙ bⁿ.
(viii) (a/b)ᵐ = aᵐ/b^{m}
Practice Exercise:
Linear equations |
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