Question

Karen bought 35 pencils for one dollar.In order to gain 40% ,how many pencils should she sell for a dollar

Answer 1

Answer:

49 pencils.

will be the answer.

Hope you understand.

Answer 2

Answer:

Step-by-step explanation:

No of pencils bought =35 for 1 dollar

Gain=40%

→ CP of 35 pencils = $1

So,

→ CP of 1 pencil = $(1/35)

For 40%  

→ SP of 1 pencil = CP * (100 + gain%) / 100

→ SP of 1 pencil = {(1/35) * (100 + 40)} / 100

→ SP of 1 pencil = {(1/35) * 140} / 100

→ SP of 1 pencil = (4/100)

→ SP of 1 pencil = $(1/25) .

So,

→ in $(1/25) he sell = 1 pencil

→ in $1 he sells = 1/(1/25) = 1 * (25/1) = 25 pencils.

Kindly mark as brainliest :D