Discussion Forum : True Discount
Question -
A grinder was marked at Rs.3,600. After given a discount of 10% the dealer made a profit of 8%. Calculate the cost price.
Answer: Option C
Answer: (c)If the C.P. of grinder be x, then${x × 108}/100 = {3600 × 90}/100$ = 3240$x = {3240 × 100}/108$ = Rs.3000Using Rule 6,M.P. = Rs.3600, D = 10%,r = 8%, C.P. = ?$\text"MP"/\text"CP" = {100 + r}/{100 - D}$$3600/\text"CP" = {100 + 8}/{100 - 10}$C.P. = ${3600 × 90}/108$= ${3600 × 10}/12$ = Rs.3000
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Answer: (c)If the C.P. of grinder be x, then${x × 108}/100 = {3600 × 90}/100$ = 3240$x = {3240 × 100}/108$ = Rs.3000Using Rule 6,M.P. = Rs.3600, D = 10%,r = 8%, C.P. = ?$\text"MP"/\text"CP" = {100 + r}/{100 - D}$$3600/\text"CP" = {100 + 8}/{100 - 10}$C.P. = ${3600 × 90}/108$= ${3600 × 10}/12$ = Rs.3000
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