Question

. If the selling price of 10 pencils is equal to the cost price of 12 pencils, the gain percent is
40%
18%
20%
25%​

Answer 1

answer-

let the cp of 1 pencil = 1

so, cp of 12 pencil = 12

now A2Q, sp of 10 pencil is equal to cp of 12 pencils

so sp of 10 pencils = 12

sp of 1 pencil = 12/10

sp of 1 pencil = 1.2

now, cp = 1

sp = 1.2

so, profit = 1.2  -  1

profit = 0.2

profit% = p*100 / cp

profit% = 0.2*100/1

profit%  =  20%

hope it helps

have a nice day

Answer 2

Answer:

Answer is 20%

Step-by-step explanation:

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