Question

a man bought apples at 10
rupees 75 and sold them at rupees 75 per dozen find his loss percent

Answer 1

Finding cost price of one apple -

10 apples = Rs 75

1 apple = 75 ÷ 10 = 7.5

Cost Price of 1 apple = Rs 7.5

Finding selling price of one apple -

12 apples = Rs 75

1 apple = 75 ÷ 12 = 6.25

Selling price of one apple = Rs 6.25

Finding Loss -

Loss = CP - SP

= 7.5 - 6.25

= 1.25 .

Loss = 1.25 .

Finding Loss Percentage -

Loss Percentage = loss / CP x 100

= 1.25/7.5 x 100

= 16.66 % .

Hence :

Loss Percentage = 16.66 %

Answer 2

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Here is your answer

CP for 10 Apples is Rs 75
CP For 1 Apple is Rs 75/10 =7.5

SP FOR 1 Apple is = Rs 75/12 = Rs 6.25

Loss = CP - SP

$= 7.5 - 6.25 \\ = 1.25 \\ \\ loss\% \: = \frac{loss}{cp} \times 100 \\ = \frac{1.25}{7.5} \times 100 \\ = 16.66\%$
Hope it helps you