Question

If the cost price of 6 pencil is equal to the selling price of 5pencil. Find gain or loss percent

Answer 1

Answer:

let cp of 1 pencil be rs 1

then cost of 11 pencils be rs 11

let sp of 1 pencil be 1 rs.

let sp of 10 pencil be 10 rs

sp of l0 pencil☺=cp of 11 pencil =rs11

then cp =10

and sp =11

here sp greater than cp(gain)

gain =sp -cp

11-10=1

gain%=gain/cp×100

1/10×100=10%

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