selling price=$ 1385,loss=$176
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Page No 157:
Question 1:
Find the SP when:
(i) CP = Rs 950, gain = 6%
(ii) CP = Rs 9600, gain = 1623%
(iii) CP = Rs 1540, loss = 4%
(iv) CP = Rs 8640, loss = 1212%
ANSWER:
(i) CP = Rs. 950
Gain = 6%
SP ={(100 + Gain%)100× CP } = {(100 + 6)100× 950} = 106100× 950 = 100700100 = Rs. 1007
(ii) CP = Rs. 9600
Gain = 1623% = 50 3%
SP={ (100 + Gain%)100× CP} = {(100 + 503)100× 9600} = 350300 ×9600 = 33603 = Rs. 11200
(iii) CP = Rs. 1540
Loss = 4%
SP={(100 − Loss%)100× CP} = {(100 − 4)100× 1540} = 96100× 1540 = 147840100 = Rs. 1478.40
(iv) CP = Rs. 8640
Loss = 1212% = 252%
SP={(100 − Loss%)100× CP} = {(100 − 252)100× 8640} = 175200× 8640 = 1512000200 = Rs. 7560
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