Question

A trader gains 15% after selling an item at 10% discount on the printed price. The ratio of the cost price and printed price of the item is

Answer 1

GIVEN,

G% = 15%

D% = 10% ON MP

LET MP = Rs. 100

SP = MP - MP *(D%/100)

SP = 100 - 100* (10/100)

SP = Rs. 90

So,

CP = (SP*100)/(100+G%)

CP = (90*100)/(100+15)

CP = (9000)/115

CP = 1800/23

CP : MP = (1800/23):100

CP/MP = 1800/2300

CP/MP = 18/23

CP : MP = 18 : 23

Please let me know if the answer is correct.

Answer 2

Answer:

answer is 18:23

Step-by-step explanation:

please ignore my handwriting ( it's rough work)