Question

pens are bought at 7 for ₹42 and sold at 10 for ₹50.express the profit or loss as percent​

Answer 1

Answer:

Loss as percent 20.

Step-by-step explanation:

In this question given that for 7 pens cost is 42 rupees ( Cost price) and for 10 pens selling price is 50 rupees. So here we should first know that the 1 pen price then after we can solve one by one .

so , for 7 pens 42 rupees

then 1 pen = 42÷7=6 rupees.

which means for 1 pen cost is 6 rupees

and for 10 pens the price will be 10*6=60

But in this question the selling price is 50 rupees when the actual price of 10 pens is 60 so here we lose the 10 rupees (i.e 60-50=10).

So now we will find the loss as percent:-

Loss = CP - SP

=60-50

=10

now, % Loss =(Loss*100)/CP , where CP means Cost price

=(10*100)/50

=1000÷50

=20%