A storekeeper sells a book at 15% gain. Had he sold it for 18 more, he would have gained 18%,. Find the cost price of the book.
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Answered by
1
Answer:
Cost price is Rupees 100
Answered by
0
Answer:
Hi ..... hope it helps .
Step-by-step explanation:
g=15%
Let the CP be x
g%=gain/CPx100
15=gain/x*100
15*x=gainx100
P=gain=15x/100
=3/20
g%=18%
g%=gain/CPx100
18=gain/x*100
18x/100=gain
P2 = gain=9/50
P2-p=18
P/50x-3/20x=18
180x-150x/1000=18
30x=18x1000
x=18x1000/30
x=rupees 600
CP of the book is rupees 600 .
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