A shopkeeper earns a profit of ₹ 2 by selling a pencil and a loss of 50 paisa by selling an
eraser.
a) In a given day he had a loss of ₹ 10. On this day, he sold 35 pencils. How many erasers were
sold on this day?
b) Next day, he earned a profit of ₹ 28. On this day, he sold 100 erasers. How many pencils did
he sell on next day
Answers
Step-by-step explanation:
(i) let no. of eraser sold be = x
total loss = rs 10
10 loss by eraser - profit by pencils
10=(0.10x) - (35×1)
10=0.10x-35
45=0.10x
x=450
so 450 erases were sold that day
(ii) let no. of pencils be = y
total profit = rs 28
28= profit by pencils = loss by eraser
28=(1×y) -(100×0.10)
28=y-10
28+10=y
38=y
y=38
so 38 pencils were sold that day
Answer:
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Step-by-step explanation:
Given,
A shopkeeper sells pencil and eraser
profit of pencil = Rs.2,
loss of eraser =50 paisa.(Rs.0.50)
a) He had loss of Rs.10 in a day
- he sold 35 pencils.
if the profit of 1 pencil is Rs .2
then ,profit of 35 pencils is =35×2= Rs.70
- the loss on day is Rs.10
If the loss of 1 eraser is Rs.0.50
the loss on erasers = profit of pencils +loss on
day=Rs .80
the no.of erasers sold on that day is:
Rs.80/Rs 0.50=16
Therefore the no. of erasers sold on that day are 16 erasers.
b) He earned profit of Rs.28
- He sold 100 erasers
if the loss of 1 eraser is Rs. 0.50
then,the loss of 100 erasers is =
Rs.0.50×100=Rs.50
The total profit of pencils is=
Rs.28+Rs 50=Rs.78
- If the profit of 1 pencil is Rs.2
then, the no. of pencils of profit Rs.78 are
Rs.78/Rs.2=39
Therefore ,the no. of pencils sold on that day are 39