Math, asked by ishwari23, 11 months ago

A shopkeeper sold a fan at a gain of 15. If it had been sold for rupees 90 more, 20% would have been gained .The cost price of fan is......


amitnrw: 525
amitnrw: (20/100)CP = (15+90) so cp = 105×5 = 525

Answers

Answered by ankitadevi119
3

Answer

Let the CP be RS 100

When gain=15%; SP = (100+15)=RS 115

When gain = 20% ; SP=(100+20)=RS 120

Difference in the selling price of the fan= 120-115=RS 5

Applying unitary method:

When sold for RS 5 , CP = 100

When sold for RS 90, CP = 100/5*90= RS 1800


Hope it's correct.....^__^



ankitadevi119: By the way is it gain 15%
BORONTS: not 15 percent
amitnrw: 525 is correct answer as gain is 15 and not 15%
Answered by BORONTS
1
shortcut process :-
percent gain => rupees gain
20%=>(90-15)= 75
4%=>15
100%=>375
cost price be 375 rs


another process


let cp be x
so firstly sp = x+15
now cp= x
secondly sp = x+ 90
now
x of 20%= (x+90)-(x+15)
or, x/5 = 75
or, x = 375
so cost price of the fan is 375 rs

BORONTS: my question
amitnrw: Whats ur question dear ?
BORONTS: wait.. uploading
ishwari23: BORONT 's Answer is wrong answer is 1800
BORONTS: sry.. please.. report it
BORONTS: @amitnrw yours also
BORONTS: @ishwari yours question is wrong
BORONTS: its 15 percent..not 15
amitnrw: If Question say 15% then only 1800 is correct otherwise 525 is correct. Question should be corrected to have 1800 as answer
BORONTS: ya
Similar questions