Answers

2015-12-01T21:24:52+05:30
CP = {100/(100 + gain%)} × SP 

Therefore:
cp =rs {100/100+10}*sp
cp =rs {100/110}*1320
cp =rs 1220





2 5 2
2015-12-02T18:05:46+05:30
Let the CP of the table be    rs.x
Given SP = rs.1320
Gain% = 10%
We know that
CP = SP - Gain%
⇒x = 1320 - (10/100) ×  x
⇒x = 1320 - (1/10) × x
⇒x = 1320 - x/10
⇒x + x/10 = 1320
⇒(10x + x)/10 =1320
⇒11x = 1320 × 10
⇒11x = 13200
⇒ x = 13200/11
∴x = 1200
Therefore the cost price of the table is Rs 1200
1 5 1
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