Question

A shopkeeper earns profits of rs 1 by selling a pencil and a loss of 20 paise by selling an eraser
1= In a given day he had a loss of 10 Rs on this day he sold 35 pencil how many eraser were sold on this day
2= Next day he earn a profit of Rs 25 on this day he sold 100 erasers how many pencil did he sell

Answer 1

Answer:

here is ur ans

Step-by-step explanation:

profit earned by A shopkeeper by selling a pencil = rs 1

loss of the shopkeeper by selling an eraser = 20 paise

1) in a given day total loss earned = 10 rs

loss by selling an eraser= 20 paise

As rs 1=100 paise

so rs 10= 1000 paise

So eraser sold = 1000/20=50 erasers

2) loss earned by selling of eraser= 20 paise

that day he sold 100 erasers

so loss = 20x100=2000 paise

or rs 20

according to question , he earned a profit of rupees 25

as already on loss of 25 so in order to gain a profit of 25 rupees he had to gain a profit of rupees 45

as we know that profit on by the shopkeeper by selling a pencil = 1 rupees

so he had to sell 45 pencils

therefore that day he sold 45 pencils

Answer 2

Answer:

i) let no. of eraser sold be x

total loss = rs 10

10= loss by eraser - profit by pencil

10= (0.10x) - (35×1)

10= 0.10x -35

45=0.10x

x=450

so 450 erasers were sold that day

(ii) let no. of pencil be y

total profit = rs 25

25= profit by pencil - loss by eraser

25=( 1× y) - (100× 0.10)

25=y-10

35=y

so 35 pencils were sold that day