Question
By selling 45 sweets for Rs 40 a man losses 20%. How
much should he sell for Rs 24 to gain 20%?Solution
SP of 45 sweets = Rs 40
SP of 1 sweets = 40/45
L = 20%
CP = 100/80 * 40/45 = 10/9
SP 2 = (100 + 20) / 100 * CP
SP 2 = 120/100 * 10/9 = 4/3
SP of Rs 4/3 sweets for 1 sweets
SP of Rs 24 for = 24/ (4/3) = (24 * 3) / 4 = 18 sweets
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