Question

two watches are sold foe 2000 each. If there is a gain of rupees 275in one and a loss of rupees 150 in another . what was the total cost price ?

Answer 1

Selling price= 2000
Gain on first= 275
CP=2000-275
=1725


SP=2000
CP=2000+150
=2150


Total CP=1725+2150
=3875

Answer 2

given that it is the SP of one watch is 2000 RS. and gain is 275 RS.
we know that-:
gain = sp - cp
275 = 2000 - cp
275 - 2000 = - cp
-1725 = - cp
or, cp = 1725 RS.
therefore cp of the first watch is RS.
1725.
again given that:-
sp = rs.2000 and loss = RS. 150
we know that,
loss = cp - SP
150 = cp - 2000
150 +2000 = CP
it 2150 = cp
or,. CP = 2150 RS.( second watch )
therefore the total cost price of both watch is 1725 + 2150 = 3875 RS.