Quantitative Aptitude Free-Study Notes
9.
PROFIT AND LOSS
A.
Cost price:
the price at which article is purchased. abbreviated as CP.
(i)
GAIN = (SP) - (CP).
B.
Selling price:
the price at which article is sold. abbreviated as SP
C.
Profit or gain:
if SP is greater than CP,the selling price is said to have profit or gain.
D.
Loss:
if SP is less than CP,the seller is said to incurred a loss.
E.
FORMULA
(ii)
LOSS = (CP) - (SP).
(iii)
LOSS OR GAIN is always reckoned on CP
(iv)
GAIN % = {GAIN*100} / CP.
(v)
LOSS% = {LOSS*100} / CP.
(vi)
SP = {(100 + GAIN%) / 100} * CP.
(vii)
SP = {(100-LOSS%) / 100} * CP.
(viii) CP =
{100 / (100 + GAIN%)} * SP
(ix)
CP = 100 / (100-LOSS%)} * SP
(x)
If the article is sold at a GAIN of say 35%, then SP=135% of CP
(xi)
If a Article is sold at a LOSS of say 35%, then SP=65% OF CP
(xii)
When a person sells two items,one at a gain of X% and other at a loss of X%.then the seller always incures a loss given: {LOSS% = (COMMON LOSS AND GAIN ) 2} / 10 = (X / 10) 2
(xiii)
If the trader professes to sell his goods at CP but uses false weights, then GAIN = [ERROR / (TRUE VALUE) - (ERROR) * 100]%